1958-001A (α) - Explorer 1

Název objektu	Explorer 1
	P-14
SSC	4
Start	1958-02-01 03:48:16 UT, Eastern Test Range, Juno 1
Stav objektu	zanikl v atmosféře
Zánik	1970-03-31.45
Životnost	4441.29 dne, tj. 12.16 roku
Provozovatel	USA, ABMA
Výrobce	USA, ABMA
Kategorie	vědecká družice
Hmotnost	13.97 kg

Parametry dráhy

Epocha	Typ	i	P	hP	hA	Pozn.
58-02-01.2	G	33.24°	114.80 min	356 km	2548 km
59-07-09.93	G	33.18°	110.23 min	357 km	2117 km
59-07-17.57	G	33.18°	110.13 min	357 km	2108 km
59-08-17.13	G	33.22°	110.04 min	357 km	2100 km
59-09-09.02	G	33.21°	109.94 min	357 km	2091 km
59-10-17.08	G	33.22°	109.84 min	357 km	2081 km
59-11-05.09	G	33.22°	109.76 min	357 km	2074 km
59-11-18.38	G	33.22°	109.65 min	357 km	2063 km
59-12-14.95	G	33.20°	109.42 min	350 km	2050 km
60-02-07.87	G	33.22°	109.06 min	349 km	2018 km
60-02-15.43	G	33.21°	109.00 min	348 km	2013 km
60-02-22.98	G	33.19°	108.92 min	347 km	2006 km
60-03-05.30	G	33.20°	108.81 min	347 km	1997 km
60-03-22.65	G	33.21°	108.75 min	349 km	1990 km
60-04-04.46	G	33.21°	108.62 min	348 km	1977 km
60-04-11.99	G	33.21°	108.52 min	348 km	1969 km
60-04-19.51	G	33.21°	108.43 min	348 km	1960 km
60-05-04.54	G	33.22°	108.35 min	349 km	1952 km
60-05-28.95	G	33.22°	108.25 min	349 km	1942 km
60-06-07.33	G	33.22°	108.16 min	349 km	1935 km
60-07-12.57	G	33.22°	108.10 min	344 km	1933 km
60-08-04.04	G	33.22°	107.96 min	344 km	1920 km
60-08-17.52	G	33.22°	107.99 min	350 km	1918 km
60-09-12.72	G	33.22°	107.88 min	350 km	1907 km
60-09-16.45	G	33.22°	107.81 min	350 km	1901 km
60-10-05.14	G	33.22°	107.75 min	350 km	1896 km
60-10-20.07	G	33.22°	107.66 min	350 km	1888 km
60-11-02.50	G	33.22°	107.53 min	350 km	1875 km
60-11-18.15	G	33.22°	107.40 min	350 km	1863 km
60-12-05.28	G	33.22°	107.33 min	350 km	1857 km
60-12-11.23	G	33.22°	107.27 min	350 km	1851 km
60-12-19.41	G	33.22°	107.20 min	350 km	1844 km
60-12-30.55	G	33.22°	107.09 min	350 km	1834 km
61-01-28.51	G	33.21°	107.03 min	354 km	1825 km
61-02-12.35	G	33.21°	106.94 min	354 km	1816 km
61-03-29.21	G	33.21°	106.86 min	354 km	1809 km
61-05-12.28	G	33.19°	106.78 min	349 km	1806 km
61-06-28.64	G	33.19°	106.68 min	349 km	1796 km
61-07-10.47	G	33.19°	106.61 min	349 km	1790 km
61-08-12.73	G	33.19°	106.55 min	349 km	1784 km
61-08-20.71	G	33.19°	106.48 min	349 km	1778 km
61-08-31.92	G	33.19°	106.40 min	349 km	1771 km
61-10-07.81	G	33.19°	106.31 min	349 km	1762 km
61-11-20.28	G	33.19°	106.23 min	349 km	1755 km
61-12-05.01	G	33.19°	106.16 min	349 km	1748 km
61-12-24.15	G	33.19°	106.20 min	349 km	1752 km
62-01-18.18	G	33.19°	106.11 min	349 km	1744 km
62-02-11.46	G	33.18°	106.18 min	355 km	1744 km
62-03-09.57	G	33.21°	106.11 min	347 km	1746 km
62-03-30.59	G	33.21°	106.05 min	356 km	1731 km
62-05-01.76	G	33.18°	105.90 min	344 km	1729 km
62-06-05.02	G	33.18°	105.82 min	360 km	1706 km
62-07-19.37	G	33.19°	105.76 min	336 km	1724 km
62-09-14.37	G	33.18°	105.70 min	340 km	1714 km
62-10-20.83	G	33.19°	105.63 min	346 km	1702 km
62-11-20.12	G	33.19°	105.54 min	358 km	1682 km
62-12-16.81	G	33.19°	105.46 min	358 km	1675 km
63-02-13.81	G	33.20°	105.35 min	351 km	1671 km
63-04-13.85	G	33.19°	105.29 min	353 km	1663 km
63-07-10.36	G	33.19°	105.18 min	351 km	1654 km
63-08-17.39	G	33.19°	105.11 min	345 km	1654 km
63-09-20.40	G	33.18°	105.05 min	340 km	1653 km
63-10-25.47	G	33.20°	104.98 min	352 km	1635 km
63-12-19.66	G	33.19°	104.80 min	340 km	1631 km
64-01-01.38	G	33.19°	104.90 min	342 km	1637 km
64-02-07.66	G	33.19°	104.79 min	343 km	1626 km
64-02-07.66	G	33.19°	104.86 min	346 km	1630 km
64-02-07.66	G	33.19°	104.79 min	343 km	1626 km
64-02-07.66	G	33.19°	104.86 min	346 km	1630 km
64-02-24.95	G	33.18°	104.77 min	341 km	1626 km
64-02-24.95	G	33.18°	104.84 min	344 km	1630 km
64-02-24.95	G	33.18°	104.77 min	341 km	1626 km
64-02-24.95	G	33.18°	104.84 min	344 km	1630 km
64-03-05.03	G	33.19°	104.75 min	346 km	1619 km
64-03-05.03	G	33.19°	104.82 min	349 km	1623 km
64-03-05.03	G	33.19°	104.75 min	346 km	1619 km
64-03-05.03	G	33.19°	104.82 min	349 km	1623 km
64-03-26.09	G	33.18°	104.70 min	347 km	1614 km
64-06-16.13	G	33.18°	104.57 min	342 km	1607 km
64-10-03.52	G	33.19°	104.50 min	341 km	1601 km
64-11-28.49	G	33.18°	104.39 min	344 km	1588 km
65-01-08.81	G	33.18°	104.32 min	342 km	1583 km
65-03-10.26	G	33.18°	104.26 min	340 km	1579 km
65-06-16.82	G	33.19°	104.15 min	341 km	1568 km
65-07-19.31	G	33.18°	104.09 min	350 km	1553 km
65-08-31.38	G	33.18°	104.03 min	343 km	1555 km
65-10-31.96	G	33.18°	103.97 min	334 km	1558 km
65-12-20.62	G	33.19°	103.91 min	340 km	1547 km
66-01-28.44	G	33.19°	103.84 min	342 km	1538 km
66-04-10.09	G	33.18°	103.66 min	340 km	1524 km
66-05-13.58	G	33.18°	103.60 min	342 km	1516 km
66-07-29.90	G	33.18°	103.48 min	340 km	1507 km
66-11-08.54	G	33.18°	103.09 min	340 km	1470 km
66-11-29.12	G	33.17°	103.02 min	338 km	1465 km
66-12-20.61	G	33.18°	102.96 min	340 km	1457 km
67-01-10.38	G	33.17°	102.90 min	340 km	1451 km
67-02-02.06	G	33.18°	102.83 min	340 km	1445 km
67-02-26.43	G	33.19°	102.71 min	340 km	1434 km
67-03-10.32	G	33.20°	102.65 min	332 km	1436 km
67-03-22.13	G	33.20°	102.58 min	340 km	1421 km
67-04-01.79	G	33.21°	102.48 min	337 km	1415 km
67-04-06.84	G	33.18°	102.42 min	336 km	1410 km
67-04-15.71	G	33.19°	102.34 min	340 km	1399 km
67-04-24.36	G	33.19°	102.26 min	341 km	1391 km
67-05-09.31	G	33.17°	102.15 min	338 km	1383 km
67-05-21.92	G	33.20°	102.07 min	328 km	1385 km
67-06-02.87	G	33.20°	101.96 min	328 km	1375 km
67-07-20.77	G	33.21°	101.83 min	340 km	1351 km
67-08-29.28	G	33.19°	101.72 min	333 km	1347 km
67-09-12.88	G	33.19°	101.66 min	337 km	1338 km
67-09-25.78	G	33.19°	101.60 min	336 km	1333 km
67-10-04.65	G	33.19°	101.54 min	336 km	1327 km
67-10-13.38	G	33.19°	101.48 min	337 km	1321 km
67-10-24.35	G	33.19°	101.40 min	337 km	1313 km
67-11-04.94	G	33.19°	101.28 min	336 km	1302 km
67-11-11.96	G	33.18°	101.22 min	336 km	1297 km
67-11-18.84	G	33.18°	101.16 min	337 km	1291 km
67-11-25.71	G	33.18°	101.09 min	338 km	1283 km
67-12-02.57	G	33.18°	101.01 min	336 km	1277 km
67-12-18.32	G	33.19°	100.89 min	336 km	1265 km
67-12-23.99	G	33.18°	100.82 min	335 km	1261 km
68-01-01.09	G	33.18°	100.76 min	335 km	1254 km
68-01-10.87	G	33.18°	100.68 min	337 km	1245 km
68-01-21.54	G	33.18°	100.59 min	336 km	1238 km
68-02-02.47	G	33.19°	100.53 min	334 km	1233 km
68-02-09.30	G	33.18°	100.47 min	334 km	1228 km
68-02-20.09	G	33.19°	100.41 min	327 km	1229 km
68-03-02.92	G	33.18°	100.34 min	328 km	1221 km
68-03-12.72	G	33.19°	100.28 min	332 km	1211 km
68-03-25.44	G	33.19°	100.21 min	331 km	1206 km
68-04-21.03	G	33.19°	100.04 min	333 km	1187 km
68-05-01.78	G	33.18°	99.96 min	332 km	1182 km
68-05-11.61	G	33.18°	99.87 min	332 km	1173 km
68-06-04.82	G	33.18°	99.66 min	332 km	1153 km
68-06-20.43	G	33.18°	99.52 min	332 km	1139 km
68-07-03.60	G	33.19°	99.43 min	333 km	1130 km
68-07-18.35	G	33.18°	99.36 min	331 km	1125 km
68-08-02.98	G	33.18°	99.27 min	328 km	1120 km
68-08-29.39	G	33.17°	99.17 min	330 km	1108 km
68-09-11.04	G	33.18°	99.11 min	329 km	1103 km
68-09-25.12	G	33.18°	99.03 min	328 km	1097 km
68-10-05.83	G	33.18°	98.97 min	326 km	1093 km
68-10-17.76	G	33.18°	98.89 min	329 km	1082 km
68-10-27.42	G	33.18°	98.82 min	328 km	1076 km
68-11-04.16	G	33.18°	98.72 min	328 km	1067 km
68-11-10.93	G	33.18°	98.65 min	328 km	1060 km
68-11-20.85	G	33.18°	98.55 min	329 km	1050 km
68-12-07.64	G	33.18°	98.36 min	329 km	1032 km
68-12-16.50	G	33.17°	98.25 min	327 km	1024 km
68-12-24.06	G	33.18°	98.19 min	324 km	1020 km
69-01-06.93	G	33.18°	98.02 min	326 km	1002 km
69-01-16.64	G	33.17°	97.93 min	325 km	994 km
69-01-22.82	G	33.17°	97.87 min	324 km	990 km
69-02-03.62	G	33.17°	97.79 min	325 km	981 km
69-02-25.16	G	33.17°	97.62 min	325 km	965 km
69-03-03.05	G	33.17°	97.55 min	323 km	960 km
69-03-15.82	G	33.17°	97.45 min	323 km	951 km
69-03-21.43	G	33.17°	97.39 min	322 km	946 km
69-03-24.67	G	33.17°	97.34 min	323 km	940 km
69-03-30.20	G	33.17°	97.27 min	320 km	936 km
69-04-09.31	G	33.17°	97.16 min	322 km	924 km
69-04-25.66	G	33.18°	97.01 min	320 km	911 km
69-04-30.77	G	33.17°	96.95 min	321 km	904 km
69-05-07.76	G	33.16°	96.88 min	322 km	897 km
69-05-17.36	G	33.16°	96.76 min	320 km	886 km
69-05-22.46	G	33.17°	96.69 min	320 km	880 km
69-05-29.42	G	33.17°	96.62 min	316 km	877 km
69-06-05.25	G	33.17°	96.55 min	319 km	869 km
69-06-15.09	G	33.17°	96.39 min	319 km	852 km
69-06-24.83	G	33.17°	96.24 min	316 km	842 km
69-07-16.36	G	33.17°	96.02 min	315 km	821 km
69-07-27.14	G	33.16°	95.93 min	315 km	812 km
69-08-08.90	G	33.17°	95.82 min	314 km	802 km
69-08-16.80	G	33.17°	95.76 min	315 km	795 km
69-08-28.08	G	33.17°	95.69 min	313 km	791 km
69-09-06.37	G	33.16°	95.60 min	314 km	781 km
69-09-14.18	G	33.17°	95.54 min	311 km	778 km
69-09-25.64	G	33.17°	95.44 min	311 km	769 km
69-10-01.85	G	33.16°	95.37 min	310 km	763 km
69-10-07.67	G	33.17°	95.29 min	313 km	753 km
69-10-17.51	G	33.16°	95.18 min	311 km	744 km
69-10-21.47	G	33.17°	95.13 min	311 km	739 km
69-10-25.35	G	33.16°	95.07 min	309 km	735 km
69-10-28.32	G	33.17°	95.01 min	309 km	729 km
69-11-03.18	G	33.17°	94.89 min	308 km	718 km
69-11-15.66	G	33.16°	94.65 min	307 km	696 km
69-11-21.56	G	33.16°	94.54 min	307 km	685 km
69-11-24.51	G	33.16°	94.47 min	306 km	680 km
69-12-07.19	G	33.16°	94.16 min	303 km	653 km
69-12-10.45	G	33.16°	94.09 min	302 km	647 km
69-12-14.11	G	33.16°	94.03 min	302 km	641 km
69-12-17.30	G	33.16°	93.97 min	301 km	636 km
69-12-20.16	G	33.16°	93.90 min	301 km	630 km
69-12-22.83	G	33.15°	93.84 min	300 km	625 km
69-12-26.08	G	33.15°	93.77 min	300 km	617 km
69-12-30.76	G	33.16°	93.67 min	301 km	607 km
70-01-05.86	G	33.15°	93.54 min	301 km	595 km
70-01-09.56	G	33.16°	93.48 min	297 km	593 km
70-01-12.73	G	33.16°	93.43 min	296 km	589 km
70-01-15.45	G	33.17°	93.38 min	296 km	583 km
70-01-17.65	G	33.15°	93.32 min	294 km	580 km
70-01-27.15	G	33.17°	93.09 min	291 km	561 km
70-01-30.37	G	33.15°	93.02 min	292 km	553 km
70-02-04.79	G	33.16°	92.91 min	291 km	542 km
70-02-09.16	G	33.15°	92.81 min	289 km	535 km
70-02-11.80	G	33.15°	92.75 min	289 km	529 km
70-02-15.97	G	33.15°	92.63 min	285 km	522 km
70-02-17.96	G	33.15°	92.57 min	284 km	517 km
70-02-19.89	G	33.15°	92.51 min	287 km	508 km
70-02-24.44	G	33.15°	92.36 min	281 km	499 km
70-02-27.70	G	33.15°	92.23 min	276 km	492 km
70-03-01.62	G	33.14°	92.14 min	276 km	483 km
70-03-03.34	G	33.14°	92.06 min	281 km	470 km
70-03-07.29	G	33.14°	91.86 min	273 km	459 km
70-03-08.57	G	33.14°	91.78 min	270 km	453 km
70-03-11.49	G	33.15°	91.57 min	268 km	435 km
70-03-31.04	G	33.15°	88.48 min	183 km	215 km

Význam parametrů: Epocha - Datum (rok, měsíc, den a zlomek dne), pro něž platí uvedené parametry. Typ - Kód typu oběžné dráhy : G - geocentrická (Země), i - Sklon dráhy (úhel mezi rovinou dráhy a referenční rovinou, tj. rovníkem nebo ekliptikou). P - Perioda (doba oběhu). h_P - Výška dráhy v pericentru. h_A - Výška dráhy v apocentru.

Popis objektu

Vědecká družice. Postavily ji Army Ballistic Missile Agency (ABMA), Huntsville, AL (USA) a Jet Propulsion Laboratory (JPL), Pasadena, CA (USA). Provozovatelem je US Army (USA).

Družice válcového tvaru o délce 2.05 m a průměru 0.165 m včetně pevně připojeného posledního stupně nosné rakety. Hmotnost vlastní družice činila 5 kg. Nesla následující přístroje:

• detektory kosmického záření;
• citlivé mikrofony pro detekci nárazů mikrometeoritů;
• odporové detektory, měřící erozi materiálu působením dopadu mikrometeoritů;
• teploměry, měřící vnější a vnitřní teplotu.

Předpokládaná aktivní živnostnost 4 měsíce.

První úspěšně vypuštěná americká umělá družice. Následující družice této řady Explorer 2 se nedostala 1958-03-05 pro havárii nosné rakety Juno 1 na oběžnou dráhu; následující úspěšně vypuštěnou je Explorer 3 (1958-003A).

Průběh letu

Datum	Událost
1958-únor	Družice objevila radiační pásmy země (tzv. Van Allenovy pásy).
1958-05-23	Došly zásoby elektřiny v bateriích a družice přestala vysílat.

Datum poslední úpravy: 2004-12-07 21:17:31 UT

© 2004 - Antonín Vítek