2009-018A - Beidou 2-G2

Název objektu	Beidou 2-G2 <= 北斗二号-G2 > /=Pej-tou 2-G2/ {=Severní hlava}
	Beidou 2-02 <= 北斗二号-02 > /=Pej-tou 2-02/ {=Severní hlava}
	Compass G2
	Compass 02
SSC	34779
Start	2009-04-14 16:16:04 UT, Xichang Satellite Launch Center /=Si-čchang/, Čchang čeng CZ-3C
Stav objektu	na geocentrické dráze
Provozovatel	Čína, Ministerstvo obrany
Výrobce	Čína, CAST
Kategorie	navigační družice
Hmotnost	? kg
Poznámka	"Severní hlava" je čínský název souhvězdí Velká medvědice (Velký vůz, Ursa Maior).

Parametry dráhy

Epocha	Typ	i	P	hP	hA	Pozn.
09-04-14.48	G	20.54°	632.51 min	209 km	35851 km
09-04-15.04	G	20.52°	632.65 min	210 km	35858 km
09-04-29.99	G	0.95°	1436.08 min	35775 km	35798 km
09-07-25.94	G	0.74°	1436.31 min	35783 km	35799 km
09-10-17.63	G	0.53°	1436.45 min	35790 km	35797 km
10-01-12.98	G	0.32°	1436.39 min	35772 km	35812 km
10-04-17.81	G	0.11°	1436.16 min	35775 km	35800 km
10-09-08.95	G	0.29°	1434.57 min	35561 km	35953 km
10-11-21.55	G	0.46°	1434.86 min	35552 km	35972 km
10-12-28.62	G	0.55°	1435.16 min	35561 km	35976 km
11-02-09.42	G	0.65°	1435.45 min	35573 km	35975 km
11-03-18.53	G	0.73°	1435.74 min	35583 km	35976 km
11-04-23.84	G	0.82°	1436.03 min	35595 km	35976 km
11-06-01.81	G	0.91°	1436.32 min	35600 km	35982 km
11-07-07.08	G	0.99°	1436.66 min	35603 km	35992 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.

Pozice na stacionární dráze

Epocha	λ	Δλ	i	Poznámka
09-05-01.89	84.63°	0.01°/d	0.95°
09-05-21.94	84.56°	-0.00°/d	0.90°
09-06-05.89	84.28°	-0.02°/d	0.86°
09-07-01.98	83.46°	-0.04°/d	0.80°
09-07-02.72	83.45°	-0.04°/d	0.79°
09-07-31.73	82.03°	-0.05°/d	0.73°
09-08-24.20	80.59°	-0.06°/d	0.67°
09-09-17.88	78.77°	-0.07°/d	0.61°
09-10-28.98	75.22°	-0.09°/d	0.51°
09-10-29.90	75.14°	-0.09°/d	0.51°
09-12-10.59	71.51°	-0.08°/d	0.40°
09-12-11.79	71.36°	-0.08°/d	0.40°
10-01-25.73	67.84°	-0.06°/d	0.29°
10-09-17.87	76.27°	0.36°/d	0.31°
10-09-19.98	76.64°	0.36°/d	0.31°
10-09-26.70	79.89°	0.37°/d	0.33°
10-10-01.96	80.97°	0.36°/d	0.34°
10-10-05.78	82.91°	0.35°/d	0.35°
10-10-08.01	82.98°	0.36°/d	0.35°
10-10-10.59	84.97°	0.36°/d	0.36°
10-10-12.85	85.10°	0.35°/d	0.36°
10-10-14.96	85.51°	0.35°/d	0.37°
10-10-16.53	87.07°	0.36°/d	0.37°
10-10-17.99	86.50°	0.35°/d	0.38°
10-10-21.43	88.67°	0.36°/d	0.38°
10-10-22.02	87.88°	0.35°/d	0.39°
10-10-25.58	90.24°	0.35°/d	0.39°
10-10-25.96	89.31°	0.35°/d	0.39°
10-10-28.64	91.17°	0.34°/d	0.40°
10-10-29.87	90.83°	0.34°/d	0.40°
10-11-01.61	92.57°	0.34°/d	0.41°
10-11-04.87	92.80°	0.33°/d	0.42°
10-11-05.62	93.82°	0.33°/d	0.42°
10-11-07.04	93.37°	0.34°/d	0.42°
10-11-08.77	94.34°	0.32°/d	0.43°
10-11-15.49	97.23°	0.32°/d	0.44°
10-11-16.60	97.37°	0.31°/d	0.45°
10-11-18.77	97.46°	0.31°/d	0.45°
10-11-19.82	97.64°	0.31°/d	0.45°
10-11-21.54	99.04°	0.31°/d	0.46°
10-11-21.84	98.21°	0.31°/d	0.46°
10-11-24.57	99.88°	0.30°/d	0.46°
10-11-25.62	100.02°	0.30°/d	0.47°
10-11-29.95	100.62°	0.31°/d	0.48°
10-12-01.58	101.88°	0.29°/d	0.48°
10-12-02.98	101.57°	0.30°/d	0.48°
10-12-04.59	102.67°	0.28°/d	0.49°
10-12-05.63	102.82°	0.28°/d	0.49°
10-12-09.88	103.46°	0.29°/d	0.50°
10-12-30.74	108.96°	0.24°/d	0.55°
10-12-31.96	109.51°	0.25°/d	0.55°
11-01-01.57	109.83°	0.23°/d	0.56°
11-01-02.62	109.90°	0.23°/d	0.56°
11-01-02.62	109.90°	0.23°/d	0.56°
11-01-06.30	111.58°	0.23°/d	0.57°
11-01-07.67	110.91°	0.22°/d	0.57°
11-01-08.91	111.27°	0.24°/d	0.57°
11-01-08.91	111.27°	0.24°/d	0.57°
11-01-13.78	112.16°	0.22°/d	0.58°
11-01-15.17	113.50°	0.22°/d	0.59°
11-01-15.17	113.50°	0.22°/d	0.59°
11-01-16.63	112.88°	0.21°/d	0.59°
11-01-17.73	112.99°	0.21°/d	0.59°
11-01-18.79	113.25°	0.22°/d	0.60°
11-01-18.79	113.25°	0.22°/d	0.60°
11-01-22.94	114.50°	0.21°/d	0.60°
11-01-22.94	114.50°	0.21°/d	0.60°
11-01-23.95	114.73°	0.21°/d	0.61°
11-01-25.72	114.59°	0.20°/d	0.61°
11-01-26.58	114.93°	0.19°/d	0.61°
11-01-27.68	114.96°	0.19°/d	0.62°
11-01-28.96	115.75°	0.20°/d	0.62°
11-01-28.96	115.75°	0.20°/d	0.62°
11-01-30.32	116.38°	0.18°/d	0.62°
11-02-01.93	116.42°	0.19°/d	0.63°
11-02-03.59	116.29°	0.17°/d	0.63°
11-02-03.69	116.21°	0.18°/d	0.63°
11-02-03.69	116.21°	0.18°/d	0.63°
11-02-04.54	116.56°	0.17°/d	0.63°
11-02-09.42	117.73°	0.16°/d	0.65°
11-02-10.64	117.38°	0.16°/d	0.65°
11-02-10.64	117.38°	0.16°/d	0.65°
11-02-11.93	118.20°	0.17°/d	0.65°
11-02-11.93	118.20°	0.17°/d	0.65°
11-02-13.53	117.99°	0.15°/d	0.65°
11-02-17.89	119.05°	0.16°/d	0.67°
11-02-17.89	119.05°	0.16°/d	0.67°
11-02-19.58	118.78°	0.14°/d	0.67°
11-02-20.61	118.89°	0.14°/d	0.67°
11-02-23.79	119.59°	0.15°/d	0.68°
11-02-25.16	120.55°	0.13°/d	0.68°
11-02-25.16	120.55°	0.13°/d	0.68°
11-02-26.53	119.74°	0.13°/d	0.69°
11-02-27.62	119.81°	0.13°/d	0.69°
11-02-28.73	120.09°	0.14°/d	0.69°
11-03-01.82	120.50°	0.14°/d	0.69°
11-03-01.82	120.50°	0.14°/d	0.69°
11-03-02.88	120.84°	0.13°/d	0.70°
11-03-02.88	120.84°	0.13°/d	0.70°
11-03-04.43	120.66°	0.11°/d	0.70°
11-03-06.58	120.64°	0.12°/d	0.70°
11-03-09.76	121.30°	0.12°/d	0.71°
11-03-14.54	121.49°	0.10°/d	0.72°
11-03-15.92	122.50°	0.11°/d	0.73°
11-03-17.56	121.77°	0.10°/d	0.73°
11-03-17.80	122.30°	0.11°/d	0.73°
11-03-19.92	122.86°	0.10°/d	0.74°
11-03-21.75	122.50°	0.10°/d	0.74°
11-03-21.75	122.50°	0.10°/d	0.74°
11-03-23.51	122.28°	0.08°/d	0.75°
11-03-24.71	122.64°	0.09°/d	0.75°
11-03-24.71	122.64°	0.09°/d	0.75°
11-03-31.82	123.56°	0.08°/d	0.77°
11-03-31.82	123.56°	0.08°/d	0.77°
11-04-05.64	123.32°	0.07°/d	0.78°
11-04-06.84	124.02°	0.06°/d	0.78°
11-04-07.90	124.22°	0.06°/d	0.78°
11-04-08.92	124.30°	0.06°/d	0.78°
11-04-08.92	124.30°	0.06°/d	0.78°
11-04-10.81	124.16°	0.06°/d	0.79°
11-04-10.81	124.16°	0.06°/d	0.79°
11-04-12.71	123.94°	0.05°/d	0.79°
11-04-13.90	124.51°	0.05°/d	0.80°
11-04-13.90	124.51°	0.05°/d	0.80°
11-04-17.62	123.88°	0.04°/d	0.80°
11-04-17.62	123.88°	0.04°/d	0.80°
11-04-19.84	124.58°	0.03°/d	0.81°
11-04-21.61	123.96°	0.03°/d	0.81°
11-04-21.61	123.96°	0.03°/d	0.81°
11-04-22.73	124.37°	0.03°/d	0.82°
11-04-23.84	124.69°	0.03°/d	0.82°
11-04-25.64	124.16°	0.03°/d	0.82°
11-04-26.73	124.47°	0.02°/d	0.83°
11-04-26.73	124.47°	0.02°/d	0.83°
11-04-28.37	123.87°	0.01°/d	0.83°
11-04-28.37	123.87°	0.01°/d	0.83°
11-04-29.72	124.49°	0.02°/d	0.83°
11-04-30.85	124.84°	0.02°/d	0.84°
11-05-01.58	124.10°	0.02°/d	0.84°
11-05-02.91	124.91°	0.01°/d	0.84°
11-05-02.91	124.91°	0.01°/d	0.84°
11-05-04.63	124.26°	0.01°/d	0.84°
11-05-05.85	124.87°	0.01°/d	0.85°
11-05-05.85	124.87°	0.01°/d	0.85°
11-05-07.57	124.10°	0.01°/d	0.85°
11-05-08.76	124.69°	0.00°/d	0.85°
11-05-09.88	124.87°	-0.00°/d	0.86°
11-05-10.22	124.14°	-0.02°/d	0.86°
11-05-11.59	124.14°	-0.00°/d	0.86°
11-05-11.84	124.81°	-0.01°/d	0.86°
11-05-13.56	124.04°	-0.01°/d	0.86°
11-05-14.78	124.67°	-0.01°/d	0.87°
11-05-15.92	124.75°	-0.02°/d	0.87°
11-05-15.92	124.75°	-0.02°/d	0.87°
11-05-17.59	124.05°	-0.01°/d	0.87°
11-05-18.72	124.45°	-0.02°/d	0.88°
11-05-20.18	123.94°	-0.04°/d	0.88°
11-05-20.18	123.94°	-0.04°/d	0.88°
11-05-21.89	124.56°	-0.03°/d	0.88°
11-05-22.92	124.49°	-0.04°/d	0.89°
11-05-22.92	124.49°	-0.04°/d	0.89°
11-05-24.42	123.46°	-0.03°/d	0.89°
11-05-25.59	123.83°	-0.03°/d	0.89°
11-05-26.73	124.20°	-0.03°/d	0.90°
11-05-27.84	124.32°	-0.04°/d	0.90°
11-05-28.90	124.24°	-0.05°/d	0.90°
11-05-28.90	124.24°	-0.05°/d	0.90°
11-06-09.23	122.65°	-0.07°/d	0.93°
11-06-09.23	122.65°	-0.07°/d	0.93°
11-06-10.32	122.48°	-0.07°/d	0.93°
11-06-11.75	123.36°	-0.07°/d	0.93°
11-06-12.86	123.29°	-0.08°/d	0.94°
11-06-12.86	123.29°	-0.08°/d	0.94°
11-06-12.86	123.29°	-0.08°/d	0.94°
11-06-14.39	122.21°	-0.07°/d	0.94°
11-06-14.83	123.15°	-0.08°/d	0.94°
11-06-15.85	123.05°	-0.08°/d	0.94°
11-06-17.61	122.58°	-0.08°/d	0.95°
11-06-22.78	122.43°	-0.09°/d	0.96°
11-06-23.72	122.30°	-0.09°/d	0.96°
11-06-24.79	122.23°	-0.10°/d	0.96°
11-06-25.79	122.13°	-0.10°/d	0.96°
11-06-26.79	122.03°	-0.10°/d	0.97°
11-06-27.69	121.85°	-0.10°/d	0.97°
11-06-28.73	121.80°	-0.10°/d	0.97°
11-06-29.77	121.70°	-0.11°/d	0.97°
11-07-01.52	120.98°	-0.10°/d	0.98°
11-07-02.85	121.28°	-0.12°/d	0.98°
11-07-07.07	120.08°	-0.14°/d	0.99°
11-07-08.63	120.46°	-0.12°/d	0.99°
11-07-09.81	120.41°	-0.13°/d	1.00°
11-07-11.24	119.19°	-0.13°/d	1.00°
11-07-11.24	119.19°	-0.13°/d	1.00°
11-07-12.80	120.00°	-0.14°/d	1.00°
11-07-14.22	118.77°	-0.14°/d	1.01°
11-07-14.22	118.77°	-0.14°/d	1.01°
11-07-16.47	118.93°	-0.14°/d	1.01°
11-07-18.86	118.96°	-0.15°/d	1.02°
11-07-20.43	118.23°	-0.14°/d	1.02°
11-07-21.57	118.50°	-0.15°/d	1.02°
11-07-22.66	118.52°	-0.15°/d	1.03°
11-07-23.75	118.37°	-0.16°/d	1.03°
11-07-25.23	117.08°	-0.16°/d	1.03°
11-07-25.23	117.08°	-0.16°/d	1.03°
11-07-27.58	117.59°	-0.16°/d	1.04°
11-07-28.60	117.46°	-0.16°/d	1.04°
11-07-29.77	117.34°	-0.17°/d	1.04°
11-07-30.81	117.09°	-0.17°/d	1.04°
11-07-31.82	116.87°	-0.18°/d	1.05°
11-08-01.92	116.39°	-0.18°/d	1.05°
11-08-01.92	116.39°	-0.18°/d	1.05°
11-08-03.33	115.69°	-0.17°/d	1.05°
11-08-04.65	116.32°	-0.18°/d	1.05°
11-08-04.65	116.32°	-0.18°/d	1.05°
11-08-07.24	114.78°	-0.19°/d	1.06°
11-08-07.24	114.78°	-0.19°/d	1.06°
11-08-08.55	115.40°	-0.19°/d	1.06°
11-08-09.88	114.93°	-0.20°/d	1.07°
11-08-09.88	114.93°	-0.20°/d	1.07°
11-08-11.78	114.83°	-0.20°/d	1.07°
11-08-11.78	114.83°	-0.20°/d	1.07°
11-08-22.46	112.38°	-0.21°/d	1.09°
11-08-26.63	111.78°	-0.22°/d	1.10°
11-08-27.65	111.55°	-0.22°/d	1.11°
11-08-31.83	110.18°	-0.24°/d	1.11°
11-08-31.83	110.18°	-0.24°/d	1.11°
11-09-02.54	110.05°	-0.24°/d	1.12°
11-09-03.81	109.49°	-0.25°/d	1.12°
11-09-03.81	109.49°	-0.25°/d	1.12°
11-09-10.98	107.07°	-0.26°/d	1.14°
11-09-10.98	107.07°	-0.26°/d	1.14°
11-09-12.74	107.37°	-0.26°/d	1.14°
11-09-12.74	107.37°	-0.26°/d	1.14°
11-09-14.33	106.49°	-0.25°/d	1.15°
11-09-17.65	106.24°	-0.27°/d	1.15°
11-09-17.65	106.24°	-0.27°/d	1.15°
11-09-17.65	106.24°	-0.27°/d	1.15°
11-09-19.85	105.09°	-0.28°/d	1.16°
11-09-19.85	105.09°	-0.28°/d	1.16°
11-09-23.59	104.59°	-0.28°/d	1.17°
11-09-23.59	104.59°	-0.28°/d	1.17°
11-09-28.16	102.15°	-0.29°/d	1.18°
11-09-28.16	102.15°	-0.29°/d	1.18°
11-09-29.57	102.81°	-0.29°/d	1.18°
11-09-29.57	102.81°	-0.29°/d	1.18°
11-09-30.57	102.51°	-0.30°/d	1.18°
11-09-30.57	102.51°	-0.30°/d	1.18°
11-09-30.57	102.51°	-0.30°/d	1.18°
11-09-30.57	102.51°	-0.30°/d	1.18°
11-09-30.57	102.51°	-0.30°/d	1.18°
11-10-05.88	100.03°	-0.33°/d	1.19°
11-10-05.88	100.03°	-0.33°/d	1.19°
11-10-05.88	100.03°	-0.33°/d	1.19°
11-10-05.88	100.03°	-0.33°/d	1.19°
11-10-09.75	99.26°	-0.32°/d	1.21°
11-10-11.53	99.03°	-0.32°/d	1.21°
11-10-11.53	99.03°	-0.32°/d	1.21°
11-10-14.75	97.60°	-0.33°/d	1.22°
11-10-16.86	96.50°	-0.33°/d	1.22°
11-10-16.86	96.50°	-0.33°/d	1.22°
11-10-18.98	95.46°	-0.33°/d	1.23°
11-10-18.98	95.46°	-0.33°/d	1.23°
11-10-19.77	95.85°	-0.33°/d	1.23°
11-10-22.67	95.19°	-0.34°/d	1.23°
11-10-22.67	95.19°	-0.34°/d	1.23°
11-10-23.55	95.06°	-0.33°/d	1.24°
11-10-23.55	95.06°	-0.33°/d	1.24°
11-10-26.84	93.12°	-0.36°/d	1.24°
11-10-26.84	93.12°	-0.36°/d	1.24°
11-10-26.84	93.12°	-0.36°/d	1.24°
11-10-26.84	93.12°	-0.36°/d	1.24°
11-11-03.67	90.92°	-0.36°/d	1.26°
11-11-04.51	90.85°	-0.35°/d	1.26°
11-11-04.51	90.85°	-0.35°/d	1.26°
11-11-04.81	90.00°	-0.36°/d	1.27°
11-11-04.81	90.00°	-0.36°/d	1.27°
11-11-04.81	90.00°	-0.36°/d	1.27°
11-11-12.98	86.65°	-0.36°/d	1.28°
11-11-12.98	86.65°	-0.36°/d	1.28°
11-11-12.98	86.65°	-0.36°/d	1.28°
11-11-12.98	86.65°	-0.36°/d	1.28°
11-11-12.98	86.65°	-0.36°/d	1.28°
11-11-18.70	85.34°	-0.37°/d	1.30°
11-11-18.70	85.34°	-0.37°/d	1.30°
11-11-21.59	84.57°	-0.37°/d	1.31°
11-11-21.59	84.57°	-0.37°/d	1.31°
11-11-23.81	83.01°	-0.37°/d	1.31°
11-11-23.81	83.01°	-0.37°/d	1.31°
11-11-26.95	81.50°	-0.37°/d	1.32°
11-11-26.95	81.50°	-0.37°/d	1.32°
11-11-27.88	81.26°	-0.37°/d	1.32°
11-11-27.88	81.26°	-0.37°/d	1.32°
11-11-27.88	81.26°	-0.37°/d	1.32°
11-11-27.88	81.26°	-0.37°/d	1.32°
11-11-27.88	81.26°	-0.37°/d	1.32°
11-12-11.70	76.56°	-0.38°/d	1.35°
11-12-12.89	75.53°	-0.37°/d	1.35°
11-12-13.99	75.09°	-0.37°/d	1.36°
11-12-14.99	74.72°	-0.37°/d	1.36°
11-12-14.99	74.72°	-0.37°/d	1.36°
11-12-15.75	74.82°	-0.38°/d	1.36°

Význam hodnot: Epocha - Datum (rok, měsíc, den), pro něž platí uvedené údaje. λ - Zeměpisná délka subsatelitního bodu ve stupních (kladná je východní délka, záporná je západní délka). Δλ - Denní změna polohy vzhledem k zemskému povrchu (změna zeměpisné délky subsatelitního bodu) ve stupních za den (kladná východním směrem, záporná západním směrem). i - Sklon dráhy k rovníku ve stupních.

Popis objektu

Stacionární navigační družice. Postavila ji firma Zhongguo Kongjian Jishu Yanjiuyuan <= 中国空间技术研究院 > /=Čung-kuo kchung-ťien ťi-šu jen-ťiou-jüan/ {=China Academy of Space Technology (CAST)}, Beijing /=Peking/ (Čína). Provozovatelem je čínská armáda Zhongguo Renmin Jiefangjun <= 中国人民解放军 > /=Čung-kuo žen-min ťie-fang-ťün/ {=Chinese People's Liberation Army (PLA)}, Bejing /=Peking/ (Čína).

Tříose stabilizovaná družice typu DFH-3 <= 东方红三号 > [=Dongfang Hong sanhao /=Tung-fang chung san-chao/ {=Východ je rudý 3}] s tělem tvaru kvádru o rozměrech přibližně 2.2×1.72×2.0 m je vybavena dvěma třídílnými rozkládacími panely slunečních baterií o rozpětí asi 18 m dodávajících 2 kW elektrické energie. Nese navigační systém pracující v pásmu L (1.58974, 1.56110, 1.20714 a 1268.52 GHz), umožňující zjišťování polohy na základě vyhodnocení dotazu zaslaného uživatelem v pozemním řídicím středisku, které je schopno obsloužit až 540 000 uživatelů, a které výsledky zašle uživateli přes družici zpět v pásmu S (2.4835 až 2.5000 GHz, rychlost přenosu 2 Mbit/s). Spojový systém je vybaven výklopnou parabolickou anténou o průměru přibližně 1.8 m. Přesnost stanovení horizontální polohy je ±100 m (1 σ, s možností postupného zlepšení na ±10 m v souvislosti se zvyšováním přesnosti digitálních map terénu) a rychlosti ±0.2 m/s. Komunikační systém využívá 1 parabolickou a 1 koutovou anténu. Dále nese komunikační systém, zabezpečující přenos krátkých textových zpráv o délce až 120 čínských znaků. Družice slouží též pro zajišťování přesné časové služby (s přesností ±20 ns, postupně zvýšovanou na ±10 ns). Pro navedení na stacionární dráhu je vybavena vlastním pohonným systémem na KPL.

Družice je součástí navigačního systému CNSS [=Compass Navigation Satellite System], který má sestávat z 5 stacionárních družic (pozice 58.75°, 80°, 110.5°, 140° a 160° v.d.), 3 družic na geosynchronních 24hodinových drahách se sklonem 55° (délka výstupného uzlu 0°, 120° a 240°) a 27 družic, pohybujících se po 9 družicích ve třech rovinách po kruhových drahách s periodou 12.8 h se sklonem 55° k rovníku.

Systém CNSS byl uveden do částečného provozu² dne 2011-12-27 pro oblast 84° v.d. až 160° v.d. a 55° s.š. až 55° j.š.

Plánovaný bod zavěšení je nad (dosud nezveřejněno). Předpokládaná doba aktivní životnosti je 8 roků.

Zatím poslední družice této řady. Předchozí družicí systému CNSS na 12tihodinové dráze je Beidou 2-M1 (2007-011A), další na stacionární dráze je Beidou 2-G3 (2010-001A).

Průběh letu

Datum	Událost
2009-04-14	16:16:04 UT: Vzlet8,9,10. Navedení na přechodovou dráhu.
2009-04-21	Družice byla navedena na stacionární dráhu11.

Literatura

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Datum poslední úpravy: 2011-12-28 12:46:01 UT

© 2011 - Petr Lála, Antonín Vítek