1487:
74:
29:
3660:
562:
495:
526:, and many important extragalactic sources. The Uhuru Catalog, issued in four successive versions, the last being the 4U catalog, was the first comprehensive X-ray catalog, contains 339 objects and covers the whole sky in the 2–6 keV band. The final version of the source catalog is known as the 4U Catalog; earlier versions were the 2U and 3U catalogs. Sources are referenced as, e.g., "
475:
range. The lower energy limit was determined by the attenuation of the beryllium windows of the counter plus a thin thermal shroud that was needed to maintain temperature stability of the spacecraft. The upper energy limit was determined by the transmission properties of the counter filling gas.
485:
of the incident photons. The two sets of counters were placed back to back and were collimated to 0.52° × 0.52° and 5.2° × 5.2° (full width at half maximum) respectively. While the 0.52° detector gave finer angular resolution, the 5.2° detector had higher sensitivity for isolated sources.
415:, 3 degrees inclination, with a period of 96 minutes. The mission ended in March 1973. Uhuru was a scanning mission, with a spin period of ~12 minutes. It performed the first comprehensive survey of the entire sky for
1533:
480:
techniques were used to filter out emissions of particles and undesirable high-energy photons in the background. Pulse-height analysis in eight energy channels was used to obtain information on the energy
4432:
2577:
2072:
1335:
4396:
4086:
2547:
1464:
1518:
1217:
4034:
445:
To determine discrete source locations with a precision of a few square minutes of arc for strong sources and a few tenths of a square degree at the sensitivity limit
2472:
1528:
4202:
3524:
3230:
3206:
1508:
1275:
1250:
3286:
2462:
3842:
3696:
2552:
575:
4479:
4390:
4250:
4070:
3812:
2694:
4295:
4060:
4015:
1471:
4290:
4124:
4103:
2428:
1328:
4473:
4179:
3989:
3852:
3779:
2237:
1430:
1599:
4467:
4457:
4452:
4442:
4422:
4417:
4412:
4360:
4330:
4325:
4315:
4305:
4300:
4285:
4280:
4270:
4265:
4260:
4255:
4245:
4233:
4228:
4213:
4184:
4159:
4129:
4119:
4097:
4092:
4075:
4050:
4028:
3999:
3994:
3984:
3979:
3974:
3969:
3964:
3959:
3954:
3949:
3919:
3907:
3892:
3877:
3872:
3867:
3847:
3822:
3797:
3763:
3733:
1224:
4540:
4530:
2522:
1523:
708:
3103:
4375:
4370:
4335:
4320:
4208:
4189:
4174:
4144:
4109:
4065:
4055:
4009:
4004:
3924:
3902:
3897:
3832:
3827:
3807:
3738:
3063:
2136:
2128:
1423:
3862:
2614:
2567:
1911:
1457:
502:
Uhuru achieved several outstanding scientific advances, including the discovery and detailed study of the pulsing accretion-powered
3887:
3785:
3768:
1834:
4447:
4239:
1486:
4345:
3837:
3689:
3604:
3349:
2855:
2160:
1437:
1265:
1152:
3519:
1943:
1882:
1306:
1195:
1167:
4535:
3384:
3376:
3318:
2449:
1162:
3095:
2959:
2919:
1716:
1188:
3015:
2743:
2436:
2253:
1959:
1858:
1320:
1072:
726:
3682:
3630:
2316:
1592:
1285:
2487:
2152:
670:
454:
To perform, wherever possible, coordinated and/or simultaneous observations of X-ray objects with other observers.
3539:
3023:
2983:
2537:
2517:
2502:
2340:
2213:
2064:
2048:
2016:
1342:
1202:
1082:
701:
3424:
3087:
2967:
2229:
2104:
2096:
1991:
1874:
1778:
1762:
1384:
1369:
1292:
1255:
1174:
3640:
3529:
2767:
2726:
2715:
2221:
2197:
2032:
1374:
1313:
1145:
1077:
3584:
3574:
3569:
3432:
2847:
2492:
1585:
1450:
1270:
1122:
3620:
3502:
3490:
3246:
3238:
3222:
2205:
1140:
1112:
1042:
1017:
681:
605:
585:
580:
467:, each with ~0.084 m effective area. The counters were sensitive with more than 10% efficiency to X-ray
67:
2999:
4515:
3408:
3392:
3121:
3111:
3079:
3007:
2927:
2791:
2710:
1951:
1850:
1692:
1117:
694:
448:
To study the structure of extended sources or complex regions with a resolution of about 30 arc minutes
2507:
4525:
4520:
3663:
3594:
3544:
2024:
1671:
1107:
644:
439:
in the 2–20 keV range to a limiting sensitivity of 1.5 × 10 joule/(cm-sec), 5 × 10 the flux from the
3625:
3564:
82:
61:
4490:
Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in
3270:
3166:
3158:
2557:
1655:
3513:
3440:
3031:
2686:
2527:
2420:
2112:
1818:
1242:
4340:
2572:
2562:
2120:
1895:
182:
1631:
3645:
3534:
2951:
2935:
2678:
632:
464:
269:
193:
655:
8:
3721:
3710:
3706:
3496:
3475:
3448:
3190:
2735:
2582:
2364:
2008:
1786:
477:
436:
299:
3802:
3674:
3579:
3456:
3278:
2943:
2542:
2482:
2324:
1935:
1927:
1826:
1794:
1684:
1418:
1406:
1157:
567:
547:
73:
3791:
3773:
2887:
2879:
2606:
2598:
2457:
1802:
1729:
1663:
1513:
1444:
1102:
1097:
977:
902:
717:
675:
404:
345:
319:
99:
2348:
4195:
4114:
3939:
3929:
3743:
3071:
1842:
1700:
827:
807:
797:
539:
252:
2807:
3635:
3174:
3055:
2004:
1623:
1608:
772:
377:
262:
2497:
2477:
2040:
309:
4509:
2372:
2261:
1975:
1639:
407:
was launched on 12 December 1970 into an initial orbit of about 560 km
2532:
2356:
1568:
Symbol indicates failure en route or before intended mission data returned
503:
482:
28:
2831:
1967:
1866:
1708:
1087:
1052:
1047:
1037:
1032:
1027:
1022:
1012:
1007:
1002:
992:
982:
972:
967:
957:
952:
947:
942:
937:
932:
922:
917:
912:
907:
897:
892:
887:
882:
877:
867:
862:
857:
852:
847:
842:
837:
832:
817:
812:
440:
420:
358:
353:
4462:
4407:
4402:
4385:
4380:
4365:
4354:
4275:
4223:
4169:
4164:
4154:
4134:
4080:
4045:
4040:
3944:
3934:
3857:
3817:
3758:
3753:
3748:
3310:
2622:
2467:
2176:
802:
792:
782:
777:
767:
762:
757:
752:
747:
527:
523:
519:
542:
word for "freedom". It was named in recognition of the hospitality of
419:
sources, with a sensitivity of about 0.001 times the intensity of the
4149:
3913:
2975:
2388:
2088:
1903:
997:
451:
To determine gross spectral features and variability of X-ray sources
373:
4498:. Payloads deployed from other spacecraft are denoted in (brackets).
686:
4139:
3882:
3262:
3198:
3039:
2815:
2751:
2512:
2412:
2404:
2308:
2245:
2056:
1919:
1745:
1737:
1577:
1389:
1379:
962:
927:
511:
4350:
4218:
4022:
3485:
3416:
3254:
2903:
2863:
2759:
2670:
2662:
2654:
2646:
2638:
2630:
2332:
2300:
1396:
1210:
515:
507:
412:
4427:
4310:
3589:
3326:
3182:
2895:
2839:
2799:
2722:
2702:
2292:
2269:
2168:
2144:
1983:
1810:
1770:
1647:
1299:
1181:
1092:
1067:
1062:
1057:
468:
408:
3559:
3554:
3357:
3294:
3214:
3151:
3146:
3141:
3136:
3131:
3126:
3116:
3047:
2911:
2871:
2823:
2783:
2775:
2380:
1753:
1411:
1401:
1280:
1260:
872:
822:
787:
543:
494:
416:
289:
279:
3599:
3549:
3507:
3480:
3400:
2991:
2396:
2080:
1231:
401:
54:
472:
3704:
16:
NASA X-ray astronomy satellite (1970–1973, decay 1979)
628:
626:
557:
1353:
623:
576:Timeline of artificial satellites and space probes
522:, the first strong candidate for an astrophysical
606:"NASA - NSSDCA - Spacecraft - Trajectory Details"
392:, the first of the three-spacecraft SAS series),
4507:
1357:
1361:
1132:
546:from where it was launched, using the Italian
4494:. Uncatalogued launch failures are listed in
3690:
1593:
702:
3697:
3683:
1600:
1586:
709:
695:
72:
27:
637:
431:The main objectives of the mission were:
376:launched specifically for the purpose of
1501:
493:
4508:
643:Forman et al. (1978), ApJS, 38, 357.
538:The satellite's name, "Uhuru", is the
3678:
1581:
716:
690:
463:The payload consisted of two sets of
1607:
324:12 December 1970, 05:54:00 UTC
13:
4541:Spacecraft which reentered in 1979
4531:Satellites formerly orbiting Earth
727:List of Explorers Program missions
458:
14:
4552:
3631:List of proposed space telescopes
2317:Nancy Grace Roman Space Telescope
1553:indicates active current missions
664:
3659:
3658:
1485:
560:
294:560.0 kilometers (348.0 mi)
284:520.0 kilometers (323.1 mi)
33:Uhuru (X-ray Explorer Satellite)
2538:Nautilus Deep Space Observatory
1565:indicate missions yet to launch
498:Uhuru observatotions of Her X-1
476:Pulse-shape discrimination and
649:
598:
84:
1:
3641:List of heliophysics missions
671:SAS-A (Explorer 42) Press Kit
633:HEASARC "The Uhuru Satellite"
591:
426:
145:141.5 kilograms (312 lb)
1559:indicates cancelled missions
380:. It was also known as the
7:
4536:Spacecraft launched in 1970
3621:Great Observatories program
682:NSSDC Master Catalog: Uhuru
586:Small Astronomy Satellite 3
581:Small Astronomy Satellite 2
553:
390:Small Astronomy Satellite A
10:
4557:
3112:Orbiting Solar Observatory
656:4U catalog browse version.
489:
166:12 December 1970, 10:53:50
4488:
3729:
3664:Category:Space telescopes
3654:
3613:
3468:
3369:
3338:
2591:
2448:
2285:
2188:
2003:
1894:
1728:
1683:
1622:
1615:
1546:
1494:
1483:
1352:
1241:
1131:
740:
733:
724:
645:HEASARC archive for Uhuru
548:San Marco launch platform
533:
342:
337:
332:
328:
318:
308:
298:
288:
278:
268:
258:
248:
243:
239:
235:
227:
212:
207:
203:
199:
189:
178:
162:
157:
153:
149:
141:
136:
132:
128:
120:
94:
81:
60:
50:
42:
38:
26:
3626:List of space telescopes
518:, the identification of
382:X-ray Explorer Satellite
2952:HEAO-2 (Einstein Obs.)
499:
435:To survey the sky for
170:1970-12-12UTC10:53:50Z
2573:Space Solar Telescope
497:
465:proportional counters
249:Reference system
137:Spacecraft properties
3713:Orbital launches in
3646:List of planetariums
2548:NRO donation to NASA
504:binary X-Ray sources
437:cosmic X-ray sources
338:All-Sky X-Ray Survey
3342:(Mission completed)
1624:Radio and Microwave
610:nssdc.gsfc.nasa.gov
23:
3279:Suzaku (Astro-EII)
3104:OAO-3 (Copernicus)
3088:Mikhailo Lomonosov
2936:Hinotori (Astro-A)
2543:New Worlds Mission
903:25 (Injun 4, IE-B)
568:Spaceflight portal
500:
314:95.70 minutes
244:Orbital parameters
21:
4516:Explorers Program
4503:
4502:
3774:Australis-OSCAR 5
3672:
3671:
3570:SIM & SIMlite
2944:Hisaki (SPRINT-A)
2904:Hakucho (CORSA-b)
2463:Astro-1 Telescope
2281:
2280:
1575:
1574:
1542:
1541:
1481:
1480:
988:42 (Uhuru, SAS-A)
718:Explorers Program
367:
366:
4548:
4526:Space telescopes
4521:X-ray telescopes
4115:Intelsat III F-8
3940:Dong Fang Hong 1
3930:Intelsat III F-7
3744:Intelsat III F-6
3718:
3717:
3716:
3699:
3692:
3685:
3676:
3675:
3662:
3661:
3461:
3457:Hitomi (Astro-H)
3453:
3445:
3437:
3429:
3421:
3413:
3405:
3397:
3389:
3381:
3362:
3354:
3343:
3331:
3323:
3315:
3307:
3299:
3291:
3283:
3275:
3267:
3259:
3251:
3243:
3235:
3227:
3219:
3211:
3203:
3195:
3187:
3179:
3171:
3163:
3108:
3100:
3092:
3084:
3076:
3068:
3060:
3052:
3044:
3036:
3028:
3020:
3012:
3004:
2996:
2988:
2980:
2972:
2964:
2956:
2948:
2940:
2932:
2924:
2916:
2908:
2900:
2892:
2884:
2876:
2868:
2860:
2852:
2844:
2836:
2828:
2820:
2812:
2804:
2796:
2788:
2780:
2772:
2764:
2756:
2748:
2740:
2732:
2707:
2699:
2691:
2683:
2675:
2667:
2659:
2651:
2643:
2635:
2627:
2619:
2611:
2603:
2441:
2433:
2425:
2417:
2409:
2401:
2393:
2385:
2377:
2369:
2361:
2353:
2345:
2337:
2329:
2321:
2313:
2305:
2297:
2274:
2266:
2258:
2250:
2242:
2234:
2226:
2218:
2210:
2202:
2191:or unclassified)
2181:
2173:
2165:
2157:
2149:
2141:
2133:
2125:
2117:
2109:
2101:
2093:
2085:
2077:
2069:
2061:
2053:
2045:
2037:
2029:
2021:
1996:
1988:
1980:
1972:
1964:
1956:
1948:
1940:
1936:Hinode (Solar-B)
1932:
1924:
1916:
1908:
1887:
1879:
1871:
1863:
1855:
1847:
1839:
1831:
1827:Hinode (Solar-B)
1823:
1815:
1807:
1799:
1791:
1783:
1775:
1767:
1759:
1750:
1742:
1721:
1713:
1705:
1697:
1676:
1668:
1660:
1652:
1644:
1636:
1620:
1619:
1609:Space telescopes
1602:
1595:
1588:
1579:
1578:
1558:
1552:
1499:
1498:
1489:
1440:
1433:
1426:
1414:
1392:
1363:
1359:
1355:
1323:
1316:
1309:
1302:
1295:
1288:
1205:
1198:
1191:
1184:
1177:
1170:
1148:
1134:
738:
737:
711:
704:
697:
688:
687:
658:
653:
647:
641:
635:
630:
621:
620:
618:
616:
602:
570:
565:
564:
563:
304:3.0 degrees
280:Perigee altitude
223:
221:
173:
171:
158:Start of mission
121:Mission duration
116:
113:
111:
109:
107:
105:
103:
101:
86:
77:
76:
70:
31:
24:
20:
4556:
4555:
4551:
4550:
4549:
4547:
4546:
4545:
4506:
4505:
4504:
4499:
4484:
4480:Molniya-1 No.22
4391:Molniya-1 No.23
4251:Molniya-1 No.19
4071:Molniya-1 No.21
3813:Molniya-1 No.17
3725:
3724:
3714:
3712:
3711:
3709:
3703:
3673:
3668:
3650:
3636:X-ray telescope
3609:
3491:Constellation-X
3464:
3459:
3451:
3443:
3435:
3427:
3419:
3411:
3403:
3395:
3387:
3379:
3365:
3360:
3352:
3341:
3340:
3334:
3329:
3327:Yokoh (Solar-A)
3321:
3313:
3305:
3297:
3295:Tenma (Astro-B)
3289:
3281:
3273:
3265:
3257:
3249:
3241:
3233:
3225:
3217:
3209:
3201:
3193:
3185:
3177:
3169:
3161:
3106:
3098:
3090:
3082:
3074:
3066:
3058:
3056:LISA Pathfinder
3050:
3042:
3034:
3026:
3018:
3010:
3002:
2994:
2986:
2978:
2970:
2962:
2954:
2946:
2938:
2930:
2922:
2914:
2912:HALCA (MUSES-B)
2906:
2898:
2890:
2888:Ginga (Astro-C)
2882:
2874:
2866:
2858:
2850:
2842:
2834:
2826:
2818:
2810:
2802:
2794:
2786:
2778:
2770:
2762:
2754:
2746:
2738:
2730:
2705:
2697:
2689:
2681:
2673:
2665:
2657:
2649:
2641:
2633:
2625:
2617:
2609:
2607:Akari (Astro-F)
2601:
2587:
2444:
2439:
2431:
2423:
2415:
2407:
2399:
2391:
2383:
2375:
2367:
2359:
2351:
2343:
2335:
2327:
2319:
2311:
2303:
2295:
2277:
2272:
2264:
2256:
2248:
2240:
2232:
2224:
2216:
2208:
2200:
2190:
2189:Other (particle
2184:
2179:
2171:
2163:
2155:
2147:
2139:
2131:
2123:
2115:
2107:
2099:
2091:
2083:
2075:
2067:
2059:
2051:
2043:
2035:
2027:
2019:
1999:
1994:
1986:
1978:
1970:
1962:
1954:
1946:
1938:
1930:
1922:
1914:
1906:
1890:
1885:
1877:
1869:
1861:
1853:
1845:
1837:
1829:
1821:
1813:
1805:
1797:
1789:
1781:
1773:
1765:
1757:
1748:
1740:
1724:
1719:
1711:
1703:
1695:
1679:
1674:
1666:
1658:
1650:
1642:
1634:
1611:
1606:
1576:
1571:
1556:
1550:
1538:
1490:
1477:
1438:
1431:
1424:
1412:
1390:
1348:
1321:
1314:
1307:
1300:
1293:
1286:
1237:
1203:
1196:
1189:
1182:
1175:
1168:
1146:
1127:
729:
720:
715:
678:at (GSFC. NASA)
676:Uhuru Satellite
667:
662:
661:
654:
650:
642:
638:
631:
624:
614:
612:
604:
603:
599:
594:
566:
561:
559:
556:
536:
492:
478:anticoincidence
461:
459:Instrumentation
429:
378:X-ray astronomy
363:
362:
356:
349:
290:Apogee altitude
219:
217:
169:
167:
98:
71:
66:
34:
17:
12:
11:
5:
4554:
4544:
4543:
4538:
4533:
4528:
4523:
4518:
4501:
4500:
4489:
4486:
4485:
4483:
4482:
4477:
4470:
4465:
4460:
4455:
4450:
4445:
4440:
4435:
4430:
4425:
4420:
4415:
4410:
4405:
4400:
4393:
4388:
4383:
4378:
4373:
4368:
4363:
4358:
4348:
4343:
4338:
4333:
4328:
4323:
4318:
4313:
4308:
4303:
4298:
4296:Meteor-M No.16
4293:
4288:
4283:
4278:
4273:
4268:
4263:
4258:
4253:
4248:
4243:
4236:
4231:
4226:
4221:
4216:
4211:
4206:
4199:
4192:
4187:
4182:
4177:
4172:
4167:
4162:
4157:
4152:
4147:
4142:
4137:
4132:
4127:
4122:
4117:
4112:
4107:
4100:
4095:
4090:
4083:
4078:
4073:
4068:
4063:
4061:Meteor-M No.17
4058:
4053:
4048:
4043:
4038:
4031:
4026:
4019:
4016:DS-P1-Yu No.36
4012:
4007:
4002:
3997:
3992:
3987:
3982:
3977:
3972:
3967:
3962:
3957:
3952:
3947:
3942:
3937:
3932:
3927:
3922:
3917:
3910:
3905:
3900:
3895:
3890:
3885:
3880:
3875:
3870:
3865:
3860:
3855:
3850:
3845:
3840:
3835:
3830:
3825:
3820:
3815:
3810:
3805:
3800:
3795:
3788:
3783:
3776:
3771:
3766:
3761:
3756:
3751:
3746:
3741:
3736:
3730:
3727:
3726:
3720:
3705:
3702:
3701:
3694:
3687:
3679:
3670:
3669:
3667:
3666:
3655:
3652:
3651:
3649:
3648:
3643:
3638:
3633:
3628:
3623:
3617:
3615:
3611:
3610:
3608:
3607:
3602:
3597:
3592:
3587:
3582:
3577:
3572:
3567:
3562:
3557:
3552:
3547:
3542:
3537:
3532:
3527:
3522:
3517:
3510:
3505:
3500:
3493:
3488:
3483:
3478:
3472:
3470:
3466:
3465:
3463:
3462:
3454:
3446:
3438:
3430:
3422:
3414:
3406:
3398:
3390:
3382:
3373:
3371:
3367:
3366:
3364:
3363:
3355:
3346:
3344:
3336:
3335:
3333:
3332:
3324:
3316:
3308:
3300:
3292:
3284:
3276:
3268:
3260:
3252:
3244:
3236:
3228:
3220:
3212:
3204:
3196:
3188:
3180:
3172:
3164:
3156:
3155:
3154:
3149:
3144:
3139:
3134:
3129:
3124:
3119:
3109:
3101:
3093:
3085:
3077:
3069:
3061:
3053:
3045:
3037:
3029:
3021:
3013:
3005:
2997:
2989:
2981:
2973:
2965:
2957:
2949:
2941:
2933:
2925:
2917:
2909:
2901:
2893:
2885:
2877:
2869:
2861:
2853:
2845:
2837:
2829:
2821:
2813:
2805:
2797:
2789:
2781:
2773:
2768:Compton (CGRO)
2765:
2757:
2749:
2741:
2733:
2720:
2719:
2718:
2713:
2700:
2695:ASCA (Astro-D)
2692:
2684:
2676:
2668:
2660:
2652:
2644:
2636:
2628:
2620:
2612:
2604:
2595:
2593:
2589:
2588:
2586:
2585:
2580:
2575:
2570:
2565:
2560:
2555:
2550:
2545:
2540:
2535:
2530:
2525:
2520:
2515:
2510:
2505:
2500:
2498:Hypertelescope
2495:
2490:
2485:
2480:
2478:Fresnel Imager
2475:
2470:
2465:
2460:
2454:
2452:
2446:
2445:
2443:
2442:
2434:
2426:
2418:
2410:
2402:
2394:
2386:
2378:
2370:
2362:
2354:
2346:
2338:
2330:
2322:
2314:
2306:
2298:
2289:
2287:
2283:
2282:
2279:
2278:
2276:
2275:
2267:
2259:
2251:
2243:
2235:
2227:
2219:
2211:
2203:
2194:
2192:
2186:
2185:
2183:
2182:
2174:
2166:
2158:
2150:
2142:
2134:
2126:
2118:
2113:Max Valier Sat
2110:
2102:
2094:
2086:
2078:
2070:
2062:
2054:
2049:HXMT (Insight)
2046:
2041:Einstein Probe
2038:
2030:
2025:Chandra (AXAF)
2022:
2013:
2011:
2001:
2000:
1998:
1997:
1989:
1981:
1973:
1965:
1957:
1949:
1941:
1933:
1925:
1917:
1909:
1900:
1898:
1892:
1891:
1889:
1888:
1880:
1872:
1864:
1856:
1848:
1840:
1832:
1824:
1816:
1808:
1800:
1792:
1784:
1776:
1768:
1760:
1756:constellation
1751:
1743:
1734:
1732:
1726:
1725:
1723:
1722:
1714:
1706:
1698:
1689:
1687:
1681:
1680:
1678:
1677:
1669:
1661:
1653:
1645:
1637:
1628:
1626:
1617:
1613:
1612:
1605:
1604:
1597:
1590:
1582:
1573:
1572:
1570:
1569:
1566:
1560:
1554:
1547:
1544:
1543:
1540:
1539:
1537:
1536:
1531:
1526:
1521:
1516:
1511:
1505:
1503:
1496:
1492:
1491:
1484:
1482:
1479:
1478:
1476:
1475:
1468:
1461:
1454:
1447:
1442:
1435:
1428:
1421:
1416:
1409:
1404:
1399:
1394:
1387:
1382:
1377:
1372:
1366:
1364:
1350:
1349:
1347:
1346:
1339:
1332:
1325:
1318:
1311:
1304:
1297:
1290:
1283:
1278:
1273:
1268:
1263:
1258:
1253:
1247:
1245:
1239:
1238:
1236:
1235:
1228:
1221:
1214:
1207:
1200:
1193:
1186:
1183:85–89 (THEMIS)
1179:
1172:
1165:
1160:
1155:
1150:
1143:
1137:
1135:
1129:
1128:
1126:
1125:
1120:
1115:
1110:
1105:
1100:
1095:
1090:
1085:
1080:
1075:
1070:
1065:
1060:
1055:
1050:
1045:
1040:
1038:52 (Hawkeye 1)
1035:
1030:
1025:
1020:
1015:
1010:
1005:
1000:
998:44 (Solrad 10)
995:
990:
985:
980:
975:
970:
965:
960:
955:
950:
945:
940:
935:
930:
925:
920:
915:
910:
905:
900:
895:
890:
885:
880:
875:
870:
865:
860:
855:
850:
845:
840:
835:
830:
825:
820:
815:
810:
805:
800:
795:
790:
785:
780:
775:
770:
765:
760:
755:
750:
744:
742:
735:
731:
730:
725:
722:
721:
714:
713:
706:
699:
691:
685:
684:
679:
673:
666:
665:External links
663:
660:
659:
648:
636:
622:
596:
595:
593:
590:
589:
588:
583:
578:
572:
571:
555:
552:
550:near Mombasa.
535:
532:
491:
488:
460:
457:
456:
455:
452:
449:
446:
443:
428:
425:
411:, 520 km
372:was the first
365:
364:
357:
351:
350:
343:
340:
339:
335:
334:
330:
329:
326:
325:
322:
316:
315:
312:
306:
305:
302:
296:
295:
292:
286:
285:
282:
276:
275:
272:
266:
265:
260:
256:
255:
250:
246:
245:
241:
240:
237:
236:
233:
232:
229:
225:
224:
214:
210:
209:
208:End of mission
205:
204:
201:
200:
197:
196:
191:
187:
186:
180:
176:
175:
164:
160:
159:
155:
154:
151:
150:
147:
146:
143:
139:
138:
134:
133:
130:
129:
126:
125:
122:
118:
117:
96:
92:
91:
88:
79:
78:
64:
58:
57:
52:
48:
47:
44:
40:
39:
36:
35:
32:
15:
9:
6:
4:
3:
2:
4553:
4542:
4539:
4537:
4534:
4532:
4529:
4527:
4524:
4522:
4519:
4517:
4514:
4513:
4511:
4497:
4493:
4487:
4481:
4478:
4476:
4475:
4471:
4469:
4466:
4464:
4461:
4459:
4456:
4454:
4451:
4449:
4446:
4444:
4441:
4439:
4436:
4434:
4431:
4429:
4426:
4424:
4421:
4419:
4416:
4414:
4411:
4409:
4406:
4404:
4401:
4399:
4398:
4394:
4392:
4389:
4387:
4384:
4382:
4379:
4377:
4374:
4372:
4369:
4367:
4364:
4362:
4359:
4356:
4352:
4349:
4347:
4344:
4342:
4339:
4337:
4334:
4332:
4329:
4327:
4324:
4322:
4319:
4317:
4314:
4312:
4309:
4307:
4304:
4302:
4299:
4297:
4294:
4292:
4291:Interkosmos 4
4289:
4287:
4284:
4282:
4279:
4277:
4274:
4272:
4269:
4267:
4264:
4262:
4259:
4257:
4254:
4252:
4249:
4247:
4244:
4242:
4241:
4237:
4235:
4232:
4230:
4227:
4225:
4222:
4220:
4217:
4215:
4212:
4210:
4207:
4205:
4204:
4200:
4198:
4197:
4193:
4191:
4188:
4186:
4183:
4181:
4178:
4176:
4173:
4171:
4168:
4166:
4163:
4161:
4158:
4156:
4153:
4151:
4148:
4146:
4143:
4141:
4138:
4136:
4133:
4131:
4128:
4126:
4125:Interkosmos 3
4123:
4121:
4118:
4116:
4113:
4111:
4108:
4106:
4105:
4104:Zenit-4 No.75
4101:
4099:
4096:
4094:
4091:
4089:
4088:
4084:
4082:
4079:
4077:
4074:
4072:
4069:
4067:
4064:
4062:
4059:
4057:
4054:
4052:
4049:
4047:
4044:
4042:
4039:
4037:
4036:
4032:
4030:
4027:
4025:
4024:
4020:
4018:
4017:
4013:
4011:
4008:
4006:
4003:
4001:
3998:
3996:
3993:
3991:
3988:
3986:
3983:
3981:
3978:
3976:
3973:
3971:
3968:
3966:
3963:
3961:
3958:
3956:
3953:
3951:
3948:
3946:
3943:
3941:
3938:
3936:
3933:
3931:
3928:
3926:
3923:
3921:
3918:
3916:
3915:
3911:
3909:
3906:
3904:
3901:
3899:
3896:
3894:
3891:
3889:
3886:
3884:
3881:
3879:
3876:
3874:
3871:
3869:
3866:
3864:
3861:
3859:
3856:
3854:
3851:
3849:
3846:
3844:
3841:
3839:
3836:
3834:
3831:
3829:
3826:
3824:
3821:
3819:
3816:
3814:
3811:
3809:
3806:
3804:
3801:
3799:
3796:
3794:
3793:
3789:
3787:
3784:
3782:
3781:
3777:
3775:
3772:
3770:
3767:
3765:
3762:
3760:
3757:
3755:
3752:
3750:
3747:
3745:
3742:
3740:
3737:
3735:
3732:
3731:
3728:
3723:
3719:
3708:
3700:
3695:
3693:
3688:
3686:
3681:
3680:
3677:
3665:
3657:
3656:
3653:
3647:
3644:
3642:
3639:
3637:
3634:
3632:
3629:
3627:
3624:
3622:
3619:
3618:
3616:
3612:
3606:
3603:
3601:
3598:
3596:
3593:
3591:
3588:
3586:
3583:
3581:
3578:
3576:
3573:
3571:
3568:
3566:
3563:
3561:
3558:
3556:
3553:
3551:
3548:
3546:
3543:
3541:
3538:
3536:
3533:
3531:
3528:
3526:
3523:
3521:
3518:
3516:
3515:
3511:
3509:
3506:
3504:
3501:
3499:
3498:
3494:
3492:
3489:
3487:
3484:
3482:
3479:
3477:
3474:
3473:
3471:
3467:
3458:
3455:
3450:
3447:
3442:
3439:
3434:
3431:
3426:
3423:
3418:
3415:
3410:
3407:
3402:
3399:
3394:
3391:
3386:
3383:
3378:
3375:
3374:
3372:
3368:
3359:
3356:
3351:
3348:
3347:
3345:
3337:
3328:
3325:
3320:
3317:
3312:
3309:
3304:
3301:
3296:
3293:
3288:
3287:Taiyo (SRATS)
3285:
3280:
3277:
3272:
3269:
3264:
3261:
3256:
3253:
3248:
3245:
3240:
3237:
3232:
3229:
3224:
3221:
3216:
3213:
3208:
3205:
3200:
3197:
3192:
3189:
3184:
3181:
3176:
3173:
3168:
3165:
3160:
3157:
3153:
3150:
3148:
3145:
3143:
3140:
3138:
3135:
3133:
3130:
3128:
3125:
3123:
3120:
3118:
3115:
3114:
3113:
3110:
3105:
3102:
3097:
3094:
3089:
3086:
3081:
3078:
3073:
3070:
3065:
3062:
3057:
3054:
3049:
3046:
3041:
3038:
3033:
3030:
3025:
3022:
3017:
3014:
3009:
3006:
3001:
2998:
2993:
2990:
2985:
2982:
2977:
2974:
2969:
2966:
2961:
2958:
2953:
2950:
2945:
2942:
2937:
2934:
2929:
2926:
2921:
2918:
2913:
2910:
2905:
2902:
2897:
2894:
2889:
2886:
2881:
2878:
2873:
2870:
2865:
2862:
2857:
2854:
2849:
2846:
2841:
2838:
2833:
2830:
2825:
2822:
2817:
2814:
2809:
2806:
2801:
2798:
2793:
2790:
2785:
2782:
2777:
2774:
2769:
2766:
2761:
2758:
2753:
2750:
2745:
2742:
2737:
2734:
2728:
2724:
2721:
2717:
2714:
2712:
2709:
2708:
2704:
2701:
2696:
2693:
2688:
2685:
2680:
2677:
2672:
2669:
2664:
2661:
2656:
2653:
2648:
2645:
2640:
2637:
2632:
2629:
2624:
2621:
2616:
2613:
2608:
2605:
2600:
2597:
2596:
2594:
2590:
2584:
2581:
2579:
2576:
2574:
2571:
2569:
2566:
2564:
2561:
2559:
2556:
2554:
2551:
2549:
2546:
2544:
2541:
2539:
2536:
2534:
2531:
2529:
2526:
2524:
2521:
2519:
2516:
2514:
2511:
2509:
2506:
2504:
2501:
2499:
2496:
2494:
2491:
2489:
2486:
2484:
2481:
2479:
2476:
2474:
2471:
2469:
2466:
2464:
2461:
2459:
2456:
2455:
2453:
2451:
2447:
2438:
2435:
2430:
2427:
2422:
2419:
2414:
2411:
2406:
2403:
2398:
2395:
2390:
2387:
2382:
2379:
2374:
2373:Solar-C EUVST
2371:
2366:
2363:
2358:
2355:
2350:
2347:
2342:
2339:
2334:
2331:
2326:
2323:
2318:
2315:
2310:
2307:
2302:
2299:
2294:
2291:
2290:
2288:
2284:
2271:
2268:
2263:
2262:Solar Orbiter
2260:
2255:
2252:
2247:
2244:
2239:
2236:
2231:
2228:
2223:
2220:
2215:
2212:
2207:
2204:
2199:
2196:
2195:
2193:
2187:
2178:
2175:
2170:
2167:
2162:
2159:
2154:
2151:
2146:
2143:
2138:
2135:
2130:
2127:
2122:
2119:
2114:
2111:
2106:
2103:
2098:
2095:
2090:
2087:
2082:
2079:
2074:
2071:
2066:
2063:
2058:
2055:
2050:
2047:
2042:
2039:
2034:
2031:
2026:
2023:
2018:
2015:
2014:
2012:
2010:
2006:
2002:
1993:
1990:
1985:
1982:
1977:
1976:Solar Orbiter
1974:
1969:
1966:
1961:
1958:
1953:
1950:
1945:
1942:
1937:
1934:
1929:
1926:
1921:
1918:
1913:
1910:
1905:
1902:
1901:
1899:
1897:
1893:
1884:
1881:
1876:
1873:
1868:
1865:
1860:
1857:
1852:
1849:
1844:
1841:
1836:
1833:
1828:
1825:
1820:
1817:
1812:
1809:
1804:
1801:
1796:
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1788:
1785:
1780:
1777:
1772:
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1764:
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1755:
1752:
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1699:
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1688:
1686:
1682:
1673:
1670:
1665:
1662:
1657:
1654:
1649:
1646:
1641:
1640:Solar Orbiter
1638:
1633:
1630:
1629:
1627:
1625:
1621:
1618:
1614:
1610:
1603:
1598:
1596:
1591:
1589:
1584:
1583:
1580:
1567:
1564:
1561:
1555:
1549:
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1535:
1532:
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1527:
1525:
1522:
1520:
1517:
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1512:
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1507:
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1500:
1497:
1493:
1488:
1474:
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1469:
1467:
1466:
1462:
1460:
1459:
1455:
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1448:
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1443:
1441:
1436:
1434:
1429:
1427:
1422:
1420:
1417:
1415:
1410:
1408:
1405:
1403:
1400:
1398:
1395:
1393:
1388:
1386:
1383:
1381:
1380:76 (TERRIERS)
1378:
1376:
1373:
1371:
1368:
1367:
1365:
1351:
1345:
1344:
1340:
1338:
1337:
1333:
1331:
1330:
1326:
1324:
1319:
1317:
1312:
1310:
1305:
1303:
1298:
1296:
1291:
1289:
1284:
1282:
1279:
1277:
1274:
1272:
1269:
1267:
1264:
1262:
1259:
1257:
1254:
1252:
1249:
1248:
1246:
1244:
1240:
1234:
1233:
1229:
1227:
1226:
1222:
1220:
1219:
1215:
1213:
1212:
1208:
1206:
1201:
1199:
1194:
1192:
1187:
1185:
1180:
1178:
1173:
1171:
1166:
1164:
1161:
1159:
1156:
1154:
1151:
1149:
1144:
1142:
1139:
1138:
1136:
1130:
1124:
1121:
1119:
1116:
1114:
1111:
1109:
1106:
1104:
1101:
1099:
1096:
1094:
1091:
1089:
1086:
1084:
1081:
1079:
1076:
1074:
1071:
1069:
1066:
1064:
1061:
1059:
1056:
1054:
1051:
1049:
1046:
1044:
1041:
1039:
1036:
1034:
1031:
1029:
1026:
1024:
1021:
1019:
1016:
1014:
1011:
1009:
1006:
1004:
1001:
999:
996:
994:
991:
989:
986:
984:
981:
979:
976:
974:
971:
969:
966:
964:
963:37 (Solrad 9)
961:
959:
956:
954:
951:
949:
946:
944:
941:
939:
936:
934:
931:
929:
928:30 (Solrad 8)
926:
924:
921:
919:
916:
914:
911:
909:
906:
904:
901:
899:
896:
894:
891:
889:
886:
884:
881:
879:
876:
874:
871:
869:
866:
864:
861:
859:
856:
854:
851:
849:
846:
844:
841:
839:
836:
834:
831:
829:
826:
824:
821:
819:
816:
814:
811:
809:
806:
804:
801:
799:
796:
794:
791:
789:
786:
784:
781:
779:
776:
774:
771:
769:
766:
764:
761:
759:
756:
754:
751:
749:
746:
745:
743:
739:
736:
732:
728:
723:
719:
712:
707:
705:
700:
698:
693:
692:
689:
683:
680:
677:
674:
672:
669:
668:
657:
652:
646:
640:
634:
629:
627:
611:
607:
601:
597:
587:
584:
582:
579:
577:
574:
573:
569:
558:
551:
549:
545:
541:
531:
529:
525:
521:
517:
513:
509:
505:
496:
487:
484:
479:
474:
471:in the ~2–20
470:
466:
453:
450:
447:
444:
442:
438:
434:
433:
432:
424:
422:
418:
414:
410:
406:
403:
399:
395:
391:
387:
383:
379:
375:
371:
361: →
360:
355:
352:←
348:
347:
341:
336:
331:
327:
323:
321:
317:
313:
311:
307:
303:
301:
297:
293:
291:
287:
283:
281:
277:
273:
271:
267:
264:
261:
257:
254:
251:
247:
242:
238:
234:
230:
226:
215:
211:
206:
202:
198:
195:
192:
188:
184:
181:
177:
165:
161:
156:
152:
148:
144:
140:
135:
131:
127:
123:
119:
115:
97:
93:
89:
87:
80:
75:
69:
65:
63:
59:
56:
53:
49:
45:
41:
37:
30:
25:
19:
4495:
4491:
4474:DS-P1-M No.1
4472:
4437:
4395:
4238:
4201:
4194:
4180:Transit O-19
4102:
4085:
4033:
4021:
4014:
3990:Meteor No.13
3912:
3853:Meteor No.14
3792:E-8-5 No.405
3790:
3780:DS-P1-I No.6
3778:
3512:
3495:
3339:Hibernating
3302:
3091:(2016–2019?)
2634:(1962, 1964)
2533:Nano-JASMINE
2357:NEO Surveyor
2273:(since 2006)
2265:(since 2020)
2257:(since 1995)
2249:(since 2019)
2241:(since 2017)
2233:(since 2008)
2225:(since 2015)
2217:(since 2015)
2209:(since 2011)
2201:(since 1997)
2180:(since 1999)
2172:(since 2024)
2164:(since 2023)
2156:(since 2022)
2148:(since 2012)
2140:(since 2017)
2132:(since 2018)
2124:(since 2009)
2116:(since 2017)
2108:(since 2004)
2100:(since 2024)
2092:(since 2019)
2084:(since 2021)
2076:(since 2020)
2068:(since 2008)
2060:(since 2002)
2052:(since 2017)
2044:(since 2024)
2036:(since 2015)
2028:(since 1999)
2020:(since 2015)
1995:(since 2004)
1987:(since 2006)
1979:(since 2020)
1971:(since 2008)
1963:(since 1995)
1955:(since 2010)
1947:(since 2013)
1939:(since 2006)
1931:(since 2021)
1923:(since 2015)
1915:(since 2022)
1907:(since 2023)
1886:(since 2018)
1878:(since 2004)
1870:(since 2008)
1862:(since 1995)
1854:(since 2010)
1846:(since 2001)
1838:(since 2013)
1830:(since 2006)
1822:(since 1990)
1814:(since 2005)
1806:(since 2013)
1798:(since 2021)
1790:(since 2023)
1782:(since 2015)
1774:(since 2019)
1766:(since 2021)
1758:(since 2013)
1749:(since 2015)
1741:(since 2018)
1720:(since 2009)
1712:(since 2008)
1704:(since 2001)
1696:(since 2022)
1675:(since 2024)
1667:(since 1994)
1659:(since 2018)
1651:(since 2006)
1643:(since 2020)
1635:(since 2018)
1562:
1551:Green titles
1470:
1463:
1456:
1449:
1397:82 (CHIPSat)
1341:
1334:
1327:
1230:
1223:
1216:
1209:
987:
978:40 (Injun 5)
873:S-66A (BE-A)
651:
639:
613:. Retrieved
609:
600:
537:
501:
462:
430:
397:
393:
389:
385:
381:
369:
368:
344:
270:Eccentricity
231:5 April 1979
213:Last contact
43:Mission type
18:
3452:(2014–2015)
3404:(2012–2013)
3370:Lost/Failed
3361:(1998–2010)
3353:(1998–2005)
3330:(1991–2001)
3322:(2001–2010)
3306:(1970–1973)
3298:(1983–1985)
3290:(1975–1980)
3282:(2005–2015)
3274:(2003–2020)
3266:(2011–2019)
3258:(1979–1985)
3250:(1975–1979)
3242:(1972–1973)
3234:(1992–2004)
3226:(1995–2012)
3218:(1990–1999)
3210:(2002–2018)
3202:(1983–1984)
3194:(2009–2013)
3178:(2006–2016)
3107:(1972–1981)
3099:(1968–1973)
3083:(1996–1997)
3075:(2003–2019)
3067:(2015–2017)
3059:(2015–2017)
3051:(1997–2002)
3043:(1990–2001)
3035:(2009–2018)
3027:(1996–2004)
3019:(1978–1996)
3011:(1996–1998)
3003:(1995–1996)
2979:(1989–1993)
2971:(2000–2008)
2963:(1979–1981)
2955:(1978–1982)
2947:(2013–2023)
2939:(1981–1991)
2931:(2009–2013)
2923:(1977–1979)
2915:(1997–2005)
2907:(1979–1985)
2899:(1989–1998)
2891:(1987–1991)
2883:(1990–1992)
2875:(2003–2013)
2867:(1987–2001)
2859:(1999–2007)
2851:(1992–2001)
2843:(1983–1986)
2832:Explorer 11
2803:(2017–2019)
2795:(1989–1993)
2787:(1975–1982)
2779:(2006–2013)
2771:(1991–2000)
2763:(2003–2008)
2755:(1996–2003)
2747:(1974–1976)
2739:(1983–1991)
2698:(1993–2000)
2690:(1973–1974)
2682:(2017–2019)
2674:(1979–1982)
2666:(1974–1980)
2658:(1971–1972)
2650:(1967–1969)
2626:(1962–1972)
2618:(1993–2005)
2610:(2006–2011)
2602:(2007–2024)
1896:Ultraviolet
1557:Grey titles
1385:79 (HETE-2)
1301:93 (NuSTAR)
1276:81 (RHESSI)
1251:68 (SAMPEX)
1093:61 (Magsat)
1068:56 (ISEE-1)
958:36 (GEOS-B)
923:29 (GEOS-A)
441:Crab Nebula
421:Crab nebula
405:observatory
398:Explorer 42
359:Explorer 43
354:Explorer 41
333:Instruments
300:Inclination
190:Launch site
163:Launch date
4510:Categories
4468:Kosmos 389
4463:Kosmos 388
4458:Kosmos 387
4453:Kosmos 386
4443:Kosmos 385
4423:Nauka No.2
4418:Kosmos 384
4413:Kosmos 383
4408:Kosmos 382
4403:Kosmos 381
4386:Kosmos 380
4381:Kosmos 379
4366:Kosmos 378
4361:Kosmos 377
4355:Lunokhod 1
4331:Kosmos 376
4326:Kosmos 375
4316:Kosmos 374
4306:Kosmos 373
4301:Kosmos 372
4286:Kosmos 371
4281:Kosmos 370
4276:Kosmos 369
4271:Nauka No.3
4266:Kosmos 368
4261:Kosmos 367
4256:Kosmos 366
4246:Kosmos 365
4234:Kosmos 364
4229:Kosmos 363
4224:Kosmos 362
4214:Kosmos 361
4185:Kosmos 360
4170:Kosmos 359
4165:Kosmos 359
4160:Kosmos 358
4155:Kosmos 357
4135:Kosmos 356
4130:Kosmos 355
4120:Kosmos 354
4098:Kosmos 353
4093:Kosmos 352
4081:Kosmos 351
4076:Kosmos 350
4051:Kosmos 349
4046:Kosmos 348
4041:Kosmos 347
4029:Kosmos 346
4000:Kosmos 345
3995:Kosmos 344
3985:Kosmos 343
3980:Kosmos 342
3975:Kosmos 341
3970:Kosmos 340
3965:Kosmos 339
3960:Kosmos 338
3955:Kosmos 337
3950:Kosmos 336
3945:Kosmos 335
3935:Kosmos 334
3920:Kosmos 333
3908:Kosmos 332
3893:Kosmos 331
3878:Kosmos 330
3873:Kosmos 329
3868:Kosmos 328
3858:Kosmos 327
3848:Kosmos 326
3823:Kosmos 325
3818:Kosmos 324
3798:Kosmos 323
3764:Kosmos 322
3759:Kosmos 321
3754:Kosmos 320
3749:Kosmos 319
3734:Kosmos 318
3311:Vanguard 3
2623:Alouette 1
2468:AstroSat-2
2177:XMM-Newton
1693:James Webb
1281:83 (GALEX)
1261:73 (TRACE)
1225:HelioSwarm
1176:84 (Swift)
1158:78 (IMAGE)
1043:53 (SAS-C)
1028:50 (IMP-J)
1023:49 (RAE-B)
1018:48 (SAS-B)
1013:47 (IMP-H)
1003:45 (SSS-A)
993:43 (IMP-I)
983:41 (IMP-G)
968:38 (RAE-A)
953:35 (IMP-E)
948:34 (IMP-F)
943:33 (IMP-D)
933:31 (DME-A)
918:28 (IMP-C)
908:26 (EPE-D)
893:23 (S-55C)
883:21 (IMP-B)
863:18 (IMP-A)
853:16 (S-55B)
848:15 (EPE-C)
843:14 (EPE-B)
838:13 (S-55A)
833:12 (EPE-A)
748:Explorer 1
592:References
528:4U 1700-37
524:black hole
520:Cygnus X-1
427:Objectives
253:Geocentric
228:Decay date
216:March 1973
4492:underline
4150:Skynet 1B
3914:Apollo 13
3514:Eddington
3469:Cancelled
2976:Hipparcos
2389:Spektr-UV
2246:Mini-EUSO
2238:ISS-CREAM
2089:Spektr-RG
2009:Gamma-ray
1904:Aditya-L1
1795:Hayabusa2
1672:Queqiao 2
1616:Operating
1502:Proposals
1495:Proposals
1375:72 (SNOE)
1322:97 (IXPE)
1308:94 (IRIS)
1294:91 (IBEX)
1271:75 (WIRE)
1266:74 (SWAS)
1256:70 (FAST)
1204:96 (ICON)
1197:95 (TESS)
1190:92 (WISE)
1163:80 (WMAP)
1153:77 (FUSE)
1141:69 (RXTE)
1123:67 (EUVE)
1118:66 (COBE)
1103:63 (DE-2)
1098:62 (DE-1)
1088:60 (SAGE)
1078:58 (HCMM)
1053:55 (AE-E)
1048:54 (AE-D)
1033:51 (AE-C)
973:39 (AD-C)
938:32 (AE-B)
913:27 (BE-C)
898:24 (AD-B)
888:22 (BE-B)
878:20 (IE-A)
868:19 (AD-A)
858:17 (AE-A)
818:11 (S-15)
803:9 (S-56A)
741:1958–1992
374:satellite
346:Explorers
263:Low Earth
194:San Marco
174: UTC
68:1970-107A
62:COSPAR ID
46:Astronomy
4376:OPS 6829
4371:OPS 4992
4336:OPS 5960
4321:OPS 7568
4209:OPS 0203
4190:OPS 7329
4175:OPS 8329
4145:OPS 7874
4140:Venera 7
4110:OPS 4324
4066:OPS 6820
4056:OPS 5346
4010:OPS 8520
4005:OPS 4720
3925:OPS 2863
3903:OPS 7044
3898:OPS 7033
3883:Nimbus 4
3833:OPS 3402
3828:OPS 0440
3808:OPS 0054
3739:OPS 6531
3565:Sentinel
3263:Spektr-R
3199:RELIKT-1
3040:Kristall
2928:Herschel
2752:BeppoSAX
2513:JEM-EUSO
2508:iWF-MAXI
2450:Proposed
2413:LiteBIRD
2405:Spektr-M
2129:MinXSS-2
2057:INTEGRAL
1920:Astrosat
1746:Astrosat
1685:Infrared
1391:INTEGRAL
1287:90 (AIM)
1147:71 (ACE)
1113:65 (CCE)
1108:64 (SME)
1083:59 (ICE)
1073:57 (IUE)
1008:46 (MTS)
783:7 (S-1A)
734:Missions
554:See also
512:Vela X-1
506:such as
483:spectrum
274:0.002956
142:Dry mass
51:Operator
4496:italics
4351:Luna 17
4219:Luna 16
4087:Unnamed
4023:Soyuz 9
3863:NATO 2A
3614:Related
3525:FINESSE
3503:Destiny
3486:Astro-G
3449:Tsubame
3441:Astro-E
3417:ABRIXAS
3271:Spitzer
3255:Solwind
3207:R/HESSI
3167:Orion 2
3159:Orion 1
2864:Kvant-1
2760:CHIPSat
2723:Astro-2
2703:Astro-1
2679:ASTERIA
2671:Ariel 6
2663:Ariel 5
2655:Ariel 4
2647:Ariel 3
2639:Ariel 2
2631:Ariel 1
2592:Retired
2583:THESEUS
2568:Solar-D
2563:PhoENiX
2408:(2030+)
2365:JASMINE
2333:Xuntian
2301:SPHEREx
2286:Planned
1835:NEOSSat
1730:Optical
1656:Queqiao
1563:Italics
1509:FINESSE
1458:SunRISE
1336:TRACERS
1211:SPHEREx
778:6 (S-2)
540:Swahili
516:Her X-1
508:Cen X-3
490:Results
469:photons
413:perigee
220:1973-04
218: (
183:Scout B
168: (
124:3 years
100:heasarc
95:Website
83:SATCAT
4428:NOAA-1
4311:Zond 8
3888:Topo-1
3803:Ohsumi
3786:SERT-2
3769:ITOS-1
3722:1971 →
3707:← 1969
3590:TAUVEX
3497:Darwin
3476:Aelita
3460:(2016)
3444:(2000)
3436:(1999)
3428:(1996)
3425:HETE-1
3420:(1999)
3412:(1965)
3396:(1976)
3388:(1970)
3380:(1966)
3314:(1959)
3231:SAMPEX
3191:Planck
3186:(2018)
3183:PicSat
3175:PAMELA
3170:(1973)
3162:(1971)
3064:MinXSS
3032:Kepler
2995:(1983)
2987:(2024)
2968:HETE-2
2960:HEAO-3
2920:HEAO-1
2896:Granat
2840:EXOSAT
2835:(1961)
2827:(2010)
2819:(2008)
2811:(1993)
2800:CXBN-2
2736:Astron
2731:(1995)
2706:(1990)
2642:(1964)
2615:ALEXIS
2523:LUVOIR
2473:EXCEDE
2440:(2035)
2432:(2035)
2429:Athena
2424:(2033)
2416:(2032)
2400:(2030)
2392:(2030)
2384:(2029)
2376:(2028)
2368:(2028)
2360:(2027)
2352:(2027)
2344:(2027)
2336:(2026)
2328:(2026)
2320:(2026)
2312:(2026)
2309:K-EUSO
2304:(2025)
2296:(2025)
2293:PETREL
2270:STEREO
2206:AMS-02
2169:XPoSat
2145:NuSTAR
1984:STEREO
1928:Hibari
1819:Hubble
1811:HiRISE
1787:Euclid
1779:DSCOVR
1771:CHEOPS
1648:STEREO
1534:ESCAPE
1529:EXCEDE
1419:Hitomi
1407:Suzaku
1370:HETE-1
1063:DADE-B
1058:DADE-A
534:Naming
514:, and
409:apogee
400:. The
310:Period
259:Regime
179:Rocket
112:/uhuru
110:/uhuru
4448:Peole
4438:Uhuru
4397:OAO-B
4240:MS-F1
4035:STV-3
3585:SPOrt
3580:SPICA
3560:OSO K
3555:OSO J
3409:OSO C
3393:CORSA
3385:OAO-B
3377:OAO-1
3358:TRACE
3303:Uhuru
3247:SAS-C
3239:SAS-B
3215:ROSAT
3152:OSO 8
3147:OSO 7
3142:OSO 6
3137:OSO 5
3132:OSO 4
3127:OSO 3
3122:OSO B
3117:OSO 1
3096:OAO-2
3048:LEGRI
2984:ILO-X
2880:Gamma
2872:GALEX
2824:EPOXI
2816:EPOCh
2784:Cos-B
2776:CoRoT
2711:BBXRT
2599:AGILE
2578:THEIA
2553:ORBIS
2503:ILO-1
2488:HabEx
2483:FOCAL
2458:Arcus
2421:Taiji
2381:ARIEL
2325:PLATO
2222:DAMPE
2214:CALET
2161:XRISM
2137:NICER
2105:Swift
2073:GECAM
2065:Fermi
2033:DAMPE
2017:CALET
2005:X-ray
1992:Swift
1968:SOLAR
1912:ASO-S
1875:Swift
1867:SOLAR
1763:CHASE
1754:BRITE
1709:SOLAR
1524:ASTRE
1519:OHMIC
1514:Arcus
1445:GUSTO
1439:XRISM
1425:NICER
1413:TWINS
1402:CINDI
1329:PUNCH
1133:MIDEX
823:S-45A
788:S-46A
615:2 May
544:Kenya
417:X-ray
396:, or
394:SAS 1
388:(for
386:SAS-A
370:Uhuru
320:Epoch
185:S175C
114:.html
108:/docs
104:.nasa
102:.gsfc
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4433:CEPI
4346:RM-1
4196:Orba
3843:Mika
3838:Wika
3715:1970
3605:XIPE
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3575:SNAP
3550:LOFT
3545:JDEM
3530:GEMS
3520:FAME
3508:EChO
3481:AOSO
3433:WIRE
3401:CXBN
3350:SWAS
3319:WMAP
3223:RXTE
3072:MOST
3024:IXAE
3000:IRTS
2992:IRAS
2856:FUSE
2848:EUVE
2792:COBE
2528:Lynx
2518:LUCI
2437:LISA
2397:UVEX
2349:LORD
2341:COSI
2254:SOHO
2230:IBEX
2153:LEIA
2121:MAXI
2097:SVOM
2081:IXPE
2007:and
1960:SOHO
1944:IRIS
1883:TESS
1859:SOHO
1843:Odin
1803:Gaia
1717:WISE
1701:Odin
1664:Wind
1632:NCLE
1472:CASE
1465:EZIE
1432:GOLD
1354:UNEX
1343:COSI
1315:GEMS
1243:SMEX
1232:UVEX
1218:MUSE
1169:FAME
828:S-55
808:S-45
798:S-56
617:2018
402:NASA
106:.gov
90:4797
55:NASA
4341:OFO
4203:X-2
3595:TPF
3540:IXO
3535:HOP
3080:MSX
3016:IUE
3008:ISO
2808:DXS
2744:ANS
2727:HUT
2716:HUT
2687:ATM
2558:OST
2493:HWO
2198:ACE
1952:SDO
1851:SDO
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473:keV
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