1977-041A - Intelsat 4A F-4

Název objektu Intelsat 4A F-4 [=International Telecommunications Satellite]
SSC 10024
Start1977-05-26 21:47 UT, Eastern Test Range, Atlas Centaur D-1AR [SLV-3D]
Stav objektu na geocentrické dráze
Očekávaná životnost na drázeneomezená
ProvozovatelIntelsat
VýrobceUSA
Kategoriestacionární telekomunikační družice
Hmotnost1500 kg

Parametry dráhy

Epocha Typ i P hP hA Pozn.
77-05-26.9 G 21.84° 640.23 min 550 km 35907 km  
77-05-29.9 G 0.28° 1424.07 min 35346 km 35755 km  
96-08-16.55 G 9.55° 1448.12 min 35966 km 36077 km  
96-12-30.30 G 9.76° 1448.04 min 35978 km 36062 km  
97-06-02.15 G 9.99° 1448.11 min 35973 km 36070 km  
98-01-02.33 G 10.29° 1448.01 min 35984 km 36055 km  
98-06-06.19 G 10.50° 1448.14 min 35980 km 36064 km  
98-11-29.16 G 10.71° 1448.11 min 35991 km 36052 km  
99-05-26.15 G 10.92° 1448.11 min 35978 km 36065 km  
99-12-10.25 G 11.14° 1448.10 min 35988 km 36054 km  
00-06-29.37 G 11.35° 1448.01 min 35971 km 36068 km  
01-01-31.56 G 11.56° 1448.12 min 35975 km 36069 km  
01-09-18.84 G 11.77° 1448.12 min 35974 km 36070 km  
02-05-08.12 G 11.98° 1448.07 min 35962 km 36079 km  
02-12-19.37 G 12.18° 1448.05 min 35967 km 36074 km  
03-08-29.77 G 12.39° 1448.04 min 35953 km 36087 km  
04-05-12.19 G 12.61° 1448.13 min 35956 km 36088 km  
05-01-13.56 G 12.82° 1448.15 min 35966 km 36079 km  
05-08-23.79 G 13.02° 1448.05 min 35952 km 36089 km  
06-04-20.12 G 13.23° 1448.04 min 35957 km 36083 km  
06-12-01.36 G 13.43° 1448.01 min 35971 km 36068 km  
07-07-27.68 G 13.64° 1448.02 min 35968 km 36071 km  
08-03-22.01 G 13.85° 1448.03 min 35982 km 36058 km  
08-11-25.38 G 14.06° 1448.00 min 35982 km 36057 km  
09-08-12.82 G 14.27° 1448.14 min 35981 km 36063 km  
10-05-26.41 G 14.48° 1448.02 min 35977 km 36062 km  
11-03-25.09 G 14.68° 1448.01 min 35973 km 36066 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). hP - Výška dráhy v pericentru. hA - Výška dráhy v apocentru.

Pozice na stacionární dráze

Epocha λ Δλ i  Poznámka
09-01-04.6049.48°-2.93°/d14.09° 
09-01-13.6522.40°-2.92°/d14.10° 
09-01-25.72-13.52°-2.91°/d14.11° 
09-02-06.78-49.46°-2.92°/d14.12° 
09-02-14.83-73.52°-2.93°/d14.12° 
09-02-24.88-103.67°-2.93°/d14.13° 
09-03-06.94-133.84°-2.93°/d14.14° 
09-03-16.99-163.90°-2.91°/d14.15° 
09-03-22.02-178.87°-2.91°/d14.15° 
09-03-27.05166.18°-2.90°/d14.16° 
09-04-06.10136.29°-2.91°/d14.16° 
09-04-10.13124.29°-2.92°/d14.17° 
09-04-22.1988.17°-2.93°/d14.18° 
09-05-01.2460.98°-2.93°/d14.19° 
09-05-12.3127.83°-2.92°/d14.19° 
09-05-17.3312.83°-2.91°/d14.20° 
09-05-26.38-14.10°-2.91°/d14.21° 
09-05-31.41-29.06°-2.91°/d14.21° 
09-06-09.46-56.02°-2.92°/d14.22° 
09-06-20.52-89.12°-2.93°/d14.22° 
09-06-30.58-119.34°-2.93°/d14.23° 
09-07-10.64-149.44°-2.92°/d14.24° 
09-07-19.69-176.41°-2.91°/d14.25° 
09-07-20.69-179.40°-2.91°/d14.25° 
09-07-25.72165.66°-2.90°/d14.25° 
09-08-04.77135.75°-2.91°/d14.26° 
09-08-12.82111.76°-2.94°/d14.27° 
09-08-23.8878.56°-2.93°/d14.27° 
09-08-31.9254.39°-2.93°/d14.28° 
09-09-05.9539.33°-2.92°/d14.29° 
09-09-14.0015.31°-2.91°/d14.29° 
09-09-23.05-11.63°-2.91°/d14.30° 
09-09-30.09-32.57°-2.91°/d14.30° 
09-10-09.14-59.55°-2.92°/d14.31° 
09-10-27.24-113.82°-2.93°/d14.33° 
09-11-06.29-143.94°-2.92°/d14.33° 
09-11-15.34-170.96°-2.91°/d14.34° 
09-11-19.36177.07°-2.90°/d14.34° 
09-11-26.40156.16°-2.90°/d14.35° 
09-12-04.45132.23°-2.91°/d14.35° 
09-12-15.5199.16°-2.93°/d14.36° 
09-12-20.5484.07°-2.93°/d14.37° 
09-12-31.6050.85°-2.93°/d14.37° 
10-01-08.6426.76°-2.92°/d14.38° 
10-01-09.6523.75°-2.91°/d14.38° 
10-01-17.69-0.23°-2.91°/d14.39° 
10-01-17.69-0.22°-2.91°/d14.39° 
10-01-26.74-27.18°-2.91°/d14.39° 
10-02-05.80-57.13°-2.92°/d14.40° 
10-02-12.84-78.19°-2.93°/d14.41° 
10-02-22.89-108.36°-2.93°/d14.41° 
10-02-26.92-120.43°-2.93°/d14.42° 
10-09-02.9637.62°-2.92°/d14.55° 
10-09-24.07-25.30°-2.90°/d14.56° 
10-10-01.11-46.25°-2.91°/d14.57° 
10-10-10.16-73.31°-2.92°/d14.57° 
10-10-17.20-94.43°-2.93°/d14.58° 
10-10-25.25-118.57°-2.93°/d14.58° 
10-11-02.29-142.67°-2.92°/d14.59° 
10-11-09.33-163.70°-2.91°/d14.59° 
10-11-15.36178.33°-2.90°/d14.60° 
10-11-27.43142.48°-2.90°/d14.60° 
10-12-03.46124.50°-2.91°/d14.61° 
10-12-10.50103.44°-2.92°/d14.61° 
10-12-17.5482.34°-2.93°/d14.62° 
10-12-24.5861.19°-2.93°/d14.62° 
10-12-28.6049.11°-2.92°/d14.62° 
11-01-02.6334.05°-2.92°/d14.63° 
11-01-02.6334.05°-2.92°/d14.63° 
11-01-02.6334.05°-2.92°/d14.63° 
11-01-03.6431.04°-2.92°/d14.63° 
11-01-03.6431.04°-2.92°/d14.63° 
11-01-03.6431.04°-2.92°/d14.63° 
11-01-08.6616.00°-2.91°/d14.63° 
11-01-08.6616.00°-2.91°/d14.63° 
11-01-09.6713.01°-2.91°/d14.63° 
11-01-09.6713.01°-2.91°/d14.63° 
11-01-09.6713.01°-2.91°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-14.70-1.96°-2.90°/d14.63° 
11-01-21.74-22.90°-2.90°/d14.64° 
11-01-21.74-22.90°-2.90°/d14.64° 
11-01-25.76-34.87°-2.91°/d14.64° 
11-01-25.76-34.87°-2.91°/d14.64° 
11-01-29.78-46.87°-2.91°/d14.64° 
11-01-29.78-46.87°-2.91°/d14.64° 
11-01-29.78-46.87°-2.91°/d14.64° 
11-02-02.80-58.88°-2.92°/d14.65° 
11-02-02.80-58.88°-2.92°/d14.65° 
11-02-02.80-58.88°-2.92°/d14.65° 
11-02-02.80-58.88°-2.92°/d14.65° 
11-02-02.80-58.88°-2.92°/d14.65° 
11-02-06.83-70.91°-2.92°/d14.65° 
11-02-10.85-82.96°-2.93°/d14.65° 
11-02-10.85-82.96°-2.93°/d14.65° 
11-02-14.87-95.02°-2.93°/d14.65° 
11-02-14.87-95.02°-2.93°/d14.65° 
11-02-18.89-107.10°-2.93°/d14.66° 
11-02-18.89-107.10°-2.93°/d14.66° 
11-02-19.90-110.12°-2.93°/d14.66° 
11-02-24.93-125.21°-2.93°/d14.66° 
11-02-24.93-125.21°-2.93°/d14.66° 
11-02-24.93-125.21°-2.93°/d14.66° 
11-03-02.96-143.31°-2.92°/d14.66° 
11-03-02.96-143.31°-2.92°/d14.66° 
11-03-02.96-143.31°-2.92°/d14.66° 
11-03-07.99-158.34°-2.91°/d14.67° 
11-03-12.01-170.33°-2.91°/d14.67° 
11-03-12.01-170.33°-2.91°/d14.67° 
11-03-17.04174.71°-2.91°/d14.67° 
11-03-17.04174.71°-2.90°/d14.67° 
11-03-17.04174.71°-2.90°/d14.67° 
11-03-22.07159.77°-2.90°/d14.67° 
11-03-22.07159.77°-2.90°/d14.67° 
11-03-22.07159.77°-2.90°/d14.67° 
11-03-23.07156.78°-2.90°/d14.67° 
11-03-27.09144.82°-2.90°/d14.68° 
11-03-27.09144.82°-2.90°/d14.68° 
11-04-01.12129.85°-2.91°/d14.68° 
11-04-01.12129.85°-2.91°/d14.68° 
11-04-01.12129.85°-2.91°/d14.68° 
11-04-06.15114.85°-2.92°/d14.68° 
11-04-06.15114.85°-2.92°/d14.68° 
11-04-07.15111.85°-2.92°/d14.68° 
11-04-07.15111.85°-2.92°/d14.68° 
11-04-11.1899.80°-2.93°/d14.69° 
11-04-11.1899.80°-2.93°/d14.69° 
11-04-15.2087.73°-2.93°/d14.69° 
11-04-15.2087.73°-2.93°/d14.69° 
11-04-16.2084.71°-2.93°/d14.69° 
11-04-16.2084.71°-2.93°/d14.69° 
11-04-16.2084.71°-2.93°/d14.69° 
11-04-20.2372.63°-2.93°/d14.69° 
11-04-20.2372.63°-2.93°/d14.69° 
11-04-24.2560.53°-2.93°/d14.69° 
11-04-24.2560.53°-2.93°/d14.69° 
11-04-24.2560.53°-2.93°/d14.69° 
11-04-24.2560.53°-2.93°/d14.69° 
11-04-28.2748.46°-2.92°/d14.70° 
11-04-28.2748.46°-2.92°/d14.70° 
11-05-04.3130.40°-2.91°/d14.70° 
11-05-04.3130.40°-2.91°/d14.70° 
11-05-04.3130.40°-2.91°/d14.70° 
11-05-07.3221.38°-2.91°/d14.70° 
11-05-07.3221.38°-2.91°/d14.70° 
11-05-07.3221.38°-2.91°/d14.70° 
11-05-12.356.39°-2.90°/d14.70° 
11-05-12.356.39°-2.90°/d14.70° 
11-05-12.356.39°-2.90°/d14.70° 
11-05-12.356.39°-2.90°/d14.70° 
11-05-17.38-8.57°-2.90°/d14.71° 
11-05-20.39-17.56°-2.90°/d14.71° 
11-05-20.39-17.56°-2.90°/d14.71° 
11-05-24.42-29.53°-2.91°/d14.71° 
11-05-24.42-29.53°-2.91°/d14.71° 
11-05-24.42-29.53°-2.91°/d14.71° 
11-05-28.44-41.52°-2.91°/d14.71° 
11-05-28.44-41.52°-2.91°/d14.71° 
11-05-28.44-41.52°-2.91°/d14.71° 
11-06-02.47-56.49°-2.91°/d14.72° 
11-06-06.49-68.51°-2.92°/d14.72° 
11-06-07.49-71.54°-2.92°/d14.72° 
11-06-07.49-71.54°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-08.50-74.55°-2.92°/d14.72° 
11-06-17.55-101.71°-2.93°/d14.72° 
11-06-17.55-101.71°-2.93°/d14.72° 
11-06-23.58-119.80°-2.92°/d14.73° 
11-06-24.59-122.82°-2.92°/d14.73° 
11-06-25.59-125.84°-2.92°/d14.73° 
11-06-26.60-128.85°-2.92°/d14.73° 
11-06-27.61-131.86°-2.92°/d14.73° 
11-06-27.61-131.86°-2.92°/d14.73° 
11-07-03.64-149.91°-2.91°/d14.73° 
11-07-03.64-149.91°-2.91°/d14.73° 
11-07-08.67-164.91°-2.91°/d14.74° 
11-07-08.67-164.92°-2.91°/d14.74° 
11-07-14.70177.11°-2.91°/d14.74° 
11-07-14.70177.11°-2.91°/d14.74° 
11-07-15.71174.13°-2.90°/d14.74° 
11-07-15.71174.13°-2.90°/d14.74° 
11-07-16.71171.14°-2.90°/d14.74° 
11-07-21.74156.20°-2.90°/d14.74° 
11-07-21.74156.20°-2.90°/d14.74° 
11-07-21.74156.20°-2.90°/d14.74° 
11-07-21.74156.20°-2.90°/d14.74° 
11-07-28.78135.26°-2.92°/d14.75° 
11-07-28.78135.26°-2.92°/d14.75° 
11-07-28.78135.26°-2.92°/d14.75° 
11-08-07.83105.24°-2.92°/d14.75° 
11-08-07.83105.24°-2.92°/d14.75° 
11-08-08.84102.22°-2.92°/d14.75° 
11-08-14.8784.11°-2.93°/d14.75° 
11-08-14.8784.11°-2.93°/d14.75° 
11-08-18.9072.03°-2.93°/d14.76° 
11-08-18.9072.03°-2.93°/d14.76° 
11-08-19.9069.01°-2.93°/d14.76° 
11-08-19.9069.01°-2.93°/d14.76° 
11-08-19.9069.01°-2.93°/d14.76° 
11-08-19.9069.01°-2.93°/d14.76° 
11-08-19.9069.01°-2.93°/d14.76° 
11-08-24.9353.91°-2.92°/d14.76° 
11-08-28.9541.86°-2.92°/d14.76° 
11-08-28.9541.85°-2.92°/d14.76° 
11-09-02.9826.81°-2.91°/d14.76° 
11-09-02.9826.81°-2.91°/d14.76° 
11-09-02.9826.81°-2.91°/d14.76° 
11-09-03.9823.80°-2.91°/d14.77° 
11-09-11.022.82°-2.90°/d14.77° 
11-09-11.022.82°-2.90°/d14.77° 
11-09-17.06-15.12°-2.90°/d14.77° 
11-09-17.06-15.12°-2.90°/d14.77° 
11-09-26.11-42.06°-2.91°/d14.78° 
11-09-26.11-42.06°-2.91°/d14.78° 
11-09-26.11-42.06°-2.91°/d14.78° 
11-10-01.13-57.07°-2.91°/d14.78° 
11-10-06.16-72.11°-2.92°/d14.78° 
11-10-07.17-75.12°-2.92°/d14.78° 
11-10-07.17-75.12°-2.92°/d14.78° 
11-10-10.18-84.16°-2.92°/d14.78° 
11-10-10.18-84.16°-2.92°/d14.78° 
11-10-11.19-87.17°-2.92°/d14.78° 
11-10-15.21-99.24°-2.93°/d14.79° 
11-10-15.21-99.24°-2.93°/d14.79° 
11-10-19.23-111.30°-2.92°/d14.79° 
11-10-19.23-111.30°-2.92°/d14.79° 
11-10-19.23-111.30°-2.92°/d14.79° 
11-10-24.26-126.38°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-10-30.30-144.45°-2.92°/d14.79° 
11-11-07.34-168.47°-2.90°/d14.80° 
11-11-08.35-171.47°-2.90°/d14.80° 
11-11-09.35-174.46°-2.90°/d14.80° 
11-11-09.35-174.46°-2.90°/d14.80° 
11-11-13.37173.58°-2.90°/d14.80° 
11-11-13.37173.58°-2.90°/d14.80° 
11-11-17.40161.60°-2.91°/d14.80° 
11-11-17.40161.60°-2.91°/d14.80° 
11-11-17.40161.60°-2.91°/d14.80° 
11-11-17.40161.60°-2.91°/d14.80° 
11-11-17.40161.60°-2.91°/d14.80° 
11-11-23.43143.68°-2.90°/d14.80° 
11-11-23.43143.68°-2.90°/d14.80° 
11-11-24.43140.69°-2.90°/d14.81° 
11-11-24.43140.69°-2.90°/d14.81° 
11-11-24.43140.69°-2.90°/d14.81° 
11-11-24.43140.69°-2.90°/d14.81° 
11-11-30.47122.70°-2.91°/d14.81° 
11-11-30.47122.70°-2.91°/d14.81° 
11-11-30.47122.70°-2.91°/d14.81° 
11-11-30.47122.70°-2.91°/d14.81° 
11-12-04.49110.68°-2.92°/d14.81° 
11-12-04.49110.68°-2.92°/d14.81° 
11-12-04.49110.68°-2.92°/d14.81° 
11-12-04.49110.68°-2.92°/d14.81° 
11-12-08.5198.62°-2.92°/d14.81° 
11-12-08.5198.62°-2.92°/d14.81° 
11-12-08.5198.62°-2.92°/d14.81° 
11-12-08.5198.62°-2.92°/d14.81° 
11-12-12.5486.55°-2.93°/d14.81° 
11-12-12.5486.55°-2.93°/d14.81° 
11-12-13.5483.53°-2.93°/d14.81° 
11-12-15.5577.47°-2.93°/d14.82° 

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 telekomunikační družice. Postavila ji firma Hughes Space and Communications Co. (HSC, nyní Boeing Satellite Systems), Seal Beach, CA (USA) v závodech v El Segundo, CA (USA). Provozovatelem je firma Comsat General Corp., Washington, DC (USA) pro mezinárodní organizaci International Telecommunication Satellite Organization (ITSO, nyní Intelsat, Ltd.), Washington, DC (USA).

Rotací stabilizovaná družice typu HS-353 válcového tvaru o průměru 2.38 m a výšce 5.31 m (po vyklopení antén 7.01 m) má boky pokryté slunečními bateriemi dodávajícími 600 W. Nese 20 převaděčů pracujících v pásmu C (6/4 GHz, šířka pásma 20×36 MHz, EIRP 22 dBW pro globální pokryv resp. 29 dBW pro úzce směrovanou anténu) s celkovou kapacitou 6250 telefonních hovorů nebo 20 televizních programů. Antenní systém (šířka svazku 18° resp. 4.5°), tvořený parabolickou anténou čtvercového tvaru o rozměrech 0.86×0.86 m pro příjem a dvěma parabolickými anténami lichoběžníkového tvaru o rozměrech 0.85 - 1.15×1.3 m pro vysílání je umístěn na stabilizované protirotující plošině spolu s celou elektronikou. Pro korekce dráhy a úpravy osy rotace slouží 4 motorky na hydrazin. Pro navedení na stacionární dráhu je vybavena motorem SVM-4A na TPL.

Plánovaný bod zavěšení je nad ### 1 ### Předpokládaná aktivní životnost je 7 roků.

Předchozí družicí této řady je Intelsat 4A F-2 (1976-010A). Bezprostředně následující Intelsat 4A F-5 se 1977-09-29 pro havárii nosné rakety Atlas Centaur nedostala na oběžnou dráhu. Další úspěšně vypuštěnou je Intelsat 4A F-3 (1978-002A).

Průběh letu

Datum Událost

Literatura

  1. Home Page. - Los Angeles, CA : Boeing, 2002. - [Cit. 2002-06-16].     (http://www.boeing.com/defense-space/space/bss/).
  2. Intelsat Home Page. - Pembroke : Intelsat, 2004. - [Cit. 2004-11-30].     (http://www.intelsat.com).
  3. Intelsat IVA. A High Capacity Satellite for Global Communications. - Los Angeles : Hughes, 1998.     (http://www.hughespace.com/factsheets/376/intelsat_iva/intelsativa.html).

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