1989-021B - TDRS-4

Název objektuTDRS-4 [=Tracking and Data Relay Satellite]
TDRS-D [=Tracking and Data Relay Satellite]
SSC 19883
Start1989-03-13 14:57:00.017 UT, Eastern Test Range, Discovery
Stav objektu na geocentrické dráze
Očekávaná životnost na drázeneomezená
ProvozovatelUSA
VýrobceUSA
Kategorietelekomunikační družice
Hmotnost2120 kg

Parametry dráhy

Epocha Typ i P hP hA Pozn.
93-01-03.53 G 0.03° 1436.18 min 35776 km 35800 km  
96-01-09.09 G 0.03° 1436.07 min 35772 km 35800 km  
97-01-02.49 G 0.28° 1436.10 min 35765 km 35808 km  
97-04-25.27 G 0.50° 1436.15 min 35783 km 35792 km  
97-08-06.27 G 0.73° 1436.16 min 35780 km 35796 km  
97-12-31.39 G 1.03° 1436.13 min 35766 km 35809 km  
98-04-14.17 G 1.25° 1436.06 min 35771 km 35801 km  
98-07-26.98 G 1.46° 1436.13 min 35776 km 35798 km  
98-11-05.23 G 1.67° 1436.25 min 35780 km 35800 km  
99-02-10.17 G 1.87° 1436.17 min 35780 km 35796 km  
99-05-17.22 G 2.08° 1436.03 min 35774 km 35796 km  
99-08-28.16 G 2.29° 1436.21 min 35780 km 35798 km  
99-12-05.08 G 2.50° 1436.05 min 35777 km 35795 km  
00-03-11.89 G 2.71° 1436.16 min 35772 km 35804 km  
00-06-17.55 G 2.92° 1436.17 min 35774 km 35802 km  
00-11-07.05 G 3.23° 1436.11 min 35779 km 35795 km  
00-12-01.98 G 3.28° 1436.04 min 35643 km 35928 km  
00-12-19.01 G 3.32° 1436.06 min 35772 km 35800 km  
01-03-17.94 G 3.52° 1436.03 min 35768 km 35802 km  
01-06-17.10 G 3.72° 1436.21 min 35770 km 35808 km  
01-09-26.02 G 3.94° 1436.21 min 35771 km 35807 km  
01-12-29.72 G 4.15° 1436.19 min 35777 km 35800 km  
02-04-04.04 G 4.37° 1436.22 min 35770 km 35808 km  
02-07-06.94 G 4.58° 1436.19 min 35773 km 35804 km  
02-10-03.10 G 4.78° 1436.15 min 35774 km 35801 km  
03-01-04.23 G 4.99° 1436.12 min 35771 km 35803 km  
03-03-29.86 G 5.20° 1436.03 min 35769 km 35801 km  
03-07-03.53 G 5.41° 1436.05 min 35774 km 35797 km  
03-09-28.51 G 5.61° 1436.22 min 35774 km 35804 km  
03-12-27.03 G 5.83° 1436.15 min 35775 km 35801 km  
04-04-04.20 G 6.06° 1436.15 min 35773 km 35802 km  
05-01-09.03 G 6.72° 1436.18 min 35775 km 35802 km  
05-03-17.06 G 6.89° 1438.69 min 35820 km 35855 km  
05-03-23.20 G 6.89° 1436.26 min 35772 km 35808 km  
05-03-23.81 G 6.89° 1436.74 min 35758 km 35841 km  
05-04-03.11 G 6.93° 1435.98 min 35772 km 35796 km  
05-06-08.60 G 7.09° 1436.35 min 35770 km 35814 km  
05-09-19.03 G 7.32° 1436.02 min 35770 km 35800 km  
05-12-14.25 G 7.53° 1436.20 min 35773 km 35804 km  
06-03-07.40 G 7.74° 1436.11 min 35771 km 35803 km  
06-06-01.94 G 7.94° 1436.00 min 35768 km 35801 km  
06-08-29.41 G 8.14° 1435.97 min 35770 km 35799 km  
06-11-22.27 G 8.35° 1436.18 min 35771 km 35805 km  
07-02-18.68 G 8.56° 1436.12 min 35775 km 35799 km  
07-05-17.54 G 8.77° 1436.08 min 35767 km 35806 km  
07-08-19.54 G 8.98° 1436.06 min 35769 km 35803 km  
07-11-13.37 G 9.18° 1435.99 min 35769 km 35800 km  
08-02-06.92 G 9.39° 1436.23 min 35775 km 35803 km  
08-05-10.02 G 9.60° 1436.18 min 35776 km 35801 km  
08-08-09.96 G 9.81° 1436.18 min 35772 km 35804 km  
08-11-10.29 G 10.02° 1436.13 min 35774 km 35800 km  
09-02-12.09 G 10.23° 1436.10 min 35771 km 35802 km  
09-05-10.56 G 10.43° 1436.07 min 35774 km 35798 km  
09-08-14.83 G 10.64° 1436.05 min 35782 km 35789 km  
09-11-21.76 G 10.85° 1436.04 min 35769 km 35802 km  
10-03-02.03 G 11.06° 1436.10 min 35755 km 35818 km  
10-06-06.94 G 11.27° 1436.08 min 35757 km 35816 km  
10-09-19.39 G 11.48° 1436.20 min 35779 km 35798 km  
10-12-27.41 G 11.68° 1436.03 min 35757 km 35813 km  
11-04-13.47 G 11.89° 1436.11 min 35749 km 35825 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
95-12-13.00-40.96°0.00°/d0.06° 
00-05-08.00-41.27°-0.02°/d2.84° 
08-05-06.09-45.60°-0.02°/d9.59° 
08-06-27.15-46.39°-0.02°/d9.71° 
08-07-08.73-46.01°0.04°/d9.74° 
08-07-11.61-46.38°0.03°/d9.74° 
08-08-20.90-46.41°-0.04°/d9.83° 
08-08-28.35-46.09°0.01°/d9.85° 
08-09-13.67-45.32°0.01°/d9.89° 
08-09-16.88-46.11°0.00°/d9.89° 
08-09-28.58-45.52°-0.00°/d9.92° 
08-09-29.86-46.27°-0.02°/d9.92° 
08-09-30.88-46.30°-0.01°/d9.92° 
08-10-04.52-45.82°-0.01°/d9.93° 
08-10-07.36-46.52°-0.02°/d9.94° 
08-10-18.67-45.71°0.01°/d9.96° 
08-10-22.08-45.36°0.02°/d9.97° 
08-10-27.76-46.13°0.01°/d9.98° 
08-11-18.22-46.31°-0.02°/d10.03° 
08-11-26.05-45.86°-0.04°/d10.05° 
08-12-01.68-46.34°0.03°/d10.07° 
08-12-04.38-45.58°0.04°/d10.07° 
08-12-17.51-45.69°-0.01°/d10.10° 
08-12-19.38-45.39°0.01°/d10.10° 
08-12-29.17-46.25°-0.00°/d10.13° 
08-12-30.35-45.48°-0.01°/d10.13° 
09-01-05.57-46.41°-0.02°/d10.14° 
09-01-07.33-45.64°-0.02°/d10.15° 
09-01-08.95-45.95°-0.04°/d10.15° 
09-01-21.45-46.13°0.02°/d10.18° 
09-01-23.07-46.42°0.03°/d10.18° 
09-01-25.28-45.53°0.03°/d10.19° 
09-01-29.08-46.25°0.03°/d10.19° 
09-01-30.22-45.57°0.03°/d10.20° 
09-02-10.07-46.09°0.02°/d10.22° 
09-02-11.27-45.36°-0.00°/d10.22° 
09-02-13.10-45.91°0.02°/d10.23° 
09-02-14.26-45.37°-0.00°/d10.23° 
09-02-18.05-46.11°0.01°/d10.24° 
09-02-19.92-46.17°-0.02°/d10.24° 
09-02-26.22-45.51°-0.02°/d10.26° 
09-02-27.23-45.54°-0.02°/d10.26° 
09-03-05.37-46.46°-0.04°/d10.27° 
09-03-10.15-45.57°0.03°/d10.29° 
09-03-11.91-46.36°0.02°/d10.29° 
09-03-18.18-45.40°0.01°/d10.31° 
09-03-20.84-46.09°0.01°/d10.31° 
09-03-23.12-45.31°0.02°/d10.32° 
09-03-25.87-46.15°0.01°/d10.32° 
09-03-28.19-45.40°-0.00°/d10.33° 
09-04-01.74-45.71°-0.01°/d10.34° 
09-04-07.86-46.22°-0.00°/d10.35° 
09-04-09.00-45.63°0.01°/d10.35° 
09-04-10.87-46.25°-0.01°/d10.36° 
09-04-12.04-45.48°-0.00°/d10.36° 
09-04-15.91-46.15°-0.00°/d10.37° 
09-04-23.07-45.65°-0.03°/d10.39° 
09-04-23.82-46.57°-0.02°/d10.39° 
09-05-01.37-46.17°0.04°/d10.40° 
09-05-09.22-46.27°0.00°/d10.42° 
09-05-10.55-45.42°0.00°/d10.43° 
09-05-12.15-45.97°-0.01°/d10.43° 
09-05-18.07-45.57°-0.01°/d10.44° 
09-05-21.20-46.28°-0.01°/d10.44° 
09-05-27.54-45.63°-0.02°/d10.46° 
09-06-05.25-46.46°-0.01°/d10.48° 
09-06-07.92-45.69°-0.03°/d10.49° 
09-06-16.97-45.69°0.02°/d10.50° 
09-06-17.25-46.18°0.05°/d10.51° 
09-06-18.53-45.98°0.00°/d10.51° 
09-06-18.89-45.46°0.03°/d10.51° 
09-06-20.53-45.98°0.01°/d10.51° 
09-06-21.96-45.60°0.01°/d10.52° 
09-06-24.60-46.29°0.01°/d10.52° 
09-06-25.91-45.37°0.01°/d10.52° 
09-06-27.97-45.67°-0.00°/d10.53° 
09-07-01.13-46.30°0.01°/d10.54° 
09-07-02.90-45.37°-0.00°/d10.54° 
09-07-05.64-46.20°0.01°/d10.55° 
09-07-09.94-45.60°-0.02°/d10.56° 
09-07-10.78-45.40°0.01°/d10.56° 
09-07-12.18-46.01°0.01°/d10.56° 
09-07-16.75-45.53°0.01°/d10.57° 
09-07-19.59-46.32°-0.00°/d10.58° 
09-07-23.82-45.46°-0.02°/d10.59° 
09-07-24.96-46.18°-0.03°/d10.59° 
09-07-29.56-46.61°-0.02°/d10.60° 
09-07-30.22-45.83°-0.01°/d10.60° 
09-08-08.74-45.39°0.03°/d10.62° 
09-08-14.83-45.55°0.00°/d10.64° 
09-08-15.91-46.07°0.00°/d10.64° 
09-08-22.17-45.36°0.01°/d10.65° 
09-08-24.35-45.84°-0.02°/d10.66° 
09-08-25.55-46.01°0.02°/d10.66° 
09-09-08.34-46.24°-0.03°/d10.69° 
09-09-16.25-46.03°-0.05°/d10.71° 
09-09-25.25-45.92°0.01°/d10.72° 
09-09-27.15-45.40°0.02°/d10.73° 
09-10-01.45-46.03°0.04°/d10.74° 
09-10-02.60-45.30°0.02°/d10.74° 
09-10-04.36-46.28°0.02°/d10.74° 
09-10-06.23-45.81°-0.01°/d10.75° 
09-10-10.59-45.26°0.01°/d10.75° 
09-10-27.55-45.48°-0.02°/d10.79° 
09-10-29.35-46.32°-0.01°/d10.79° 
09-11-01.07-45.60°-0.03°/d10.80° 
09-11-04.34-46.48°-0.01°/d10.81° 
09-11-05.32-46.57°-0.02°/d10.81° 
09-11-14.34-46.11°0.04°/d10.83° 
09-11-16.25-46.40°0.03°/d10.83° 
09-11-26.41-45.33°0.02°/d10.86° 
09-11-28.11-45.95°-0.00°/d10.86° 
09-11-29.21-46.22°0.01°/d10.86° 
09-12-01.47-45.29°0.00°/d10.87° 
09-12-02.57-45.84°-0.01°/d10.87° 
09-12-06.38-45.35°0.01°/d10.88° 
09-12-08.15-46.21°-0.01°/d10.88° 
09-12-10.49-45.54°-0.02°/d10.89° 
09-12-12.20-46.24°-0.00°/d10.89° 
09-12-18.40-45.45°-0.02°/d10.90° 
09-12-20.20-46.33°-0.01°/d10.91° 
09-12-21.30-45.73°-0.01°/d10.91° 
09-12-22.60-46.55°-0.03°/d10.91° 
09-12-25.36-45.47°0.03°/d10.93° 
09-12-26.59-46.46°0.02°/d10.92° 
09-12-30.74-45.79°0.04°/d10.93° 
10-01-01.36-45.34°0.02°/d10.93° 
10-01-02.09-46.28°0.01°/d10.93° 
10-01-11.30-45.32°0.01°/d10.95° 
10-01-16.08-46.27°0.00°/d10.96° 
10-01-17.34-45.38°-0.01°/d10.97° 
10-01-19.08-46.27°0.00°/d10.97° 
10-01-20.20-45.68°0.01°/d10.97° 
10-01-21.34-45.46°-0.02°/d10.98° 
10-01-24.63-46.17°0.01°/d10.98° 
10-01-26.25-45.47°-0.01°/d10.99° 
10-01-31.92-46.18°-0.04°/d11.00° 
10-02-02.55-46.69°-0.02°/d11.00° 
10-02-03.83-45.79°-0.04°/d11.00° 
10-02-07.24-45.54°0.04°/d11.01° 
10-02-08.99-46.47°0.03°/d11.02° 
10-02-12.12-45.85°0.05°/d11.02° 
10-02-13.21-45.39°0.03°/d11.02° 
10-02-14.45-46.47°0.02°/d11.03° 
10-02-17.87-45.90°0.00°/d11.03° 
10-02-20.26-45.38°0.01°/d11.04° 
10-09-16.37-46.52°-0.02°/d11.47° 
10-09-24.16-45.53°0.02°/d11.49° 
10-09-25.35-46.53°0.03°/d11.49° 
10-09-26.35-46.51°0.03°/d11.49° 
10-09-30.51-45.64°0.04°/d11.50° 
10-10-02.07-45.30°0.03°/d11.50° 
10-10-07.33-46.34°0.02°/d11.51° 
10-10-09.18-45.59°-0.01°/d11.51° 
10-10-09.60-45.23°0.00°/d11.51° 
10-10-11.21-45.83°-0.01°/d11.52° 
10-10-12.56-45.19°0.01°/d11.52° 
10-10-17.28-46.31°-0.00°/d11.53° 
10-10-18.84-46.35°0.01°/d11.53° 
10-10-27.15-45.78°-0.03°/d11.55° 
10-10-28.26-46.42°-0.01°/d11.56° 
10-10-31.36-46.17°0.00°/d11.56° 
10-11-01.55-45.46°-0.03°/d11.56° 
10-11-02.23-46.50°-0.02°/d11.56° 
10-11-03.65-46.21°-0.04°/d11.57° 
10-11-10.44-45.39°0.03°/d11.58° 
10-11-15.30-46.12°0.03°/d11.59° 
10-11-16.36-45.65°0.03°/d11.59° 
10-11-17.23-46.33°0.01°/d11.60° 
10-11-23.41-45.25°0.01°/d11.61° 
10-11-26.21-46.31°0.01°/d11.61° 
10-12-05.34-45.55°0.00°/d11.63° 
10-12-08.17-46.50°-0.01°/d11.64° 
10-12-09.30-45.87°0.00°/d11.64° 
10-12-10.37-45.48°-0.01°/d11.64° 
10-12-11.77-46.19°-0.00°/d11.64° 
10-12-14.61-46.75°-0.03°/d11.65° 
10-12-15.62-46.82°-0.03°/d11.65° 
10-12-18.18-46.51°0.05°/d11.66° 
10-12-20.86-45.44°0.04°/d11.67° 
10-12-28.45-45.69°-0.00°/d11.68° 
10-12-31.40-45.40°0.00°/d11.68° 
10-12-31.40-45.40°0.00°/d11.68° 
11-01-02.15-46.20°0.03°/d11.69° 
11-01-03.19-45.98°0.03°/d11.69° 
11-01-04.96-45.79°-0.01°/d11.69° 
11-01-04.96-45.79°-0.01°/d11.69° 
11-01-06.28-45.31°0.02°/d11.70° 
11-01-08.16-46.06°0.02°/d11.70° 
11-01-08.16-46.06°0.02°/d11.70° 
11-01-09.18-45.88°0.02°/d11.70° 
11-01-11.13-46.18°0.02°/d11.70° 
11-01-11.13-46.18°0.02°/d11.70° 
11-01-12.68-45.99°0.02°/d11.71° 
11-01-12.68-45.99°0.02°/d11.71° 
11-01-16.38-45.54°-0.02°/d11.71° 
11-01-18.15-45.99°0.01°/d11.72° 
11-01-18.15-45.99°0.01°/d11.72° 
11-01-19.74-45.43°0.01°/d11.72° 
11-01-21.11-46.22°0.01°/d11.72° 
11-01-22.17-45.79°0.01°/d11.73° 
11-01-22.17-45.79°0.01°/d11.73° 
11-01-24.22-45.51°-0.00°/d11.73° 
11-01-26.05-46.52°-0.01°/d11.73° 
11-01-26.05-46.52°-0.01°/d11.73° 
11-01-27.17-45.85°0.00°/d11.74° 
11-01-28.28-45.49°-0.03°/d11.74° 
11-01-28.28-45.49°-0.03°/d11.74° 
11-02-01.03-46.71°-0.02°/d11.75° 
11-02-01.03-46.71°-0.02°/d11.75° 
11-02-01.03-46.71°-0.02°/d11.75° 
11-02-02.36-46.17°-0.05°/d11.75° 
11-02-02.36-46.17°-0.05°/d11.75° 
11-02-02.36-46.17°-0.05°/d11.75° 
11-02-05.06-46.46°0.05°/d11.76° 
11-02-06.29-45.58°0.02°/d11.76° 
11-02-07.95-46.48°0.02°/d11.76° 
11-02-07.95-46.48°0.02°/d11.76° 
11-02-09.31-45.67°0.01°/d11.76° 
11-02-10.69-45.50°0.04°/d11.76° 
11-02-10.69-45.50°0.04°/d11.76° 
11-02-10.69-45.50°0.04°/d11.76° 
11-02-17.86-45.99°0.00°/d11.78° 
11-02-17.86-45.99°0.00°/d11.78° 
11-02-19.29-45.56°-0.00°/d11.78° 
11-02-19.29-45.56°-0.00°/d11.78° 
11-02-22.21-45.20°0.01°/d11.79° 
11-02-22.21-45.20°0.01°/d11.79° 
11-02-22.21-45.20°0.01°/d11.79° 
11-02-22.21-45.20°0.01°/d11.79° 
11-02-27.84-45.99°-0.01°/d11.80° 
11-02-27.84-45.99°-0.01°/d11.80° 
11-03-01.18-45.19°-0.00°/d11.80° 
11-03-01.18-45.19°-0.00°/d11.80° 
11-03-02.25-45.48°-0.02°/d11.80° 
11-03-02.25-45.48°-0.02°/d11.80° 
11-03-05.16-45.20°-0.00°/d11.81° 
11-03-06.53-46.04°0.02°/d11.81° 
11-03-08.18-45.25°-0.01°/d11.82° 
11-03-11.90-46.43°-0.01°/d11.82° 
11-03-11.90-46.43°-0.01°/d11.82° 
11-03-13.20-45.45°-0.03°/d11.83° 
11-03-14.22-45.58°-0.03°/d11.83° 
11-03-14.22-45.58°-0.03°/d11.83° 
11-03-17.28-46.25°-0.04°/d11.83° 
11-03-19.15-45.45°-0.03°/d11.84° 
11-03-19.15-45.45°-0.03°/d11.84° 
11-03-22.22-45.97°-0.05°/d11.84° 
11-03-25.14-45.42°0.03°/d11.85° 
11-03-25.14-45.42°0.03°/d11.85° 
11-03-26.26-46.20°0.01°/d11.85° 
11-03-28.13-45.34°0.03°/d11.86° 
11-03-28.13-45.34°0.03°/d11.86° 
11-03-29.50-45.82°0.06°/d11.86° 
11-03-29.50-45.82°0.06°/d11.86° 
11-03-31.28-46.32°0.01°/d11.86° 
11-04-01.80-46.27°0.02°/d11.87° 
11-04-01.80-46.27°0.02°/d11.87° 
11-04-10.62-45.36°-0.01°/d11.88° 
11-04-10.62-45.36°-0.01°/d11.88° 
11-04-10.62-45.36°-0.01°/d11.88° 
11-04-13.46-45.69°0.02°/d11.89° 
11-04-13.46-45.69°0.02°/d11.89° 
11-04-15.11-45.33°-0.02°/d11.89° 
11-04-16.56-45.29°-0.01°/d11.90° 
11-04-16.56-45.29°-0.01°/d11.90° 
11-04-21.19-46.15°-0.03°/d11.90° 
11-04-21.19-46.15°-0.03°/d11.90° 
11-04-21.19-46.15°-0.03°/d11.90° 
11-04-23.11-45.57°-0.03°/d11.91° 
11-04-25.90-45.95°0.00°/d11.91° 
11-04-25.90-45.95°0.00°/d11.91° 
11-04-27.32-46.73°-0.01°/d11.92° 
11-04-27.32-46.73°-0.01°/d11.92° 
11-04-28.86-46.29°-0.00°/d11.92° 
11-04-28.86-46.29°-0.00°/d11.92° 
11-05-01.81-46.61°-0.01°/d11.92° 
11-05-01.81-46.61°-0.01°/d11.92° 
11-05-04.08-45.91°-0.05°/d11.93° 
11-05-04.08-45.91°-0.05°/d11.93° 
11-05-04.08-45.91°-0.05°/d11.93° 
11-05-04.08-45.91°-0.05°/d11.93° 
11-05-07.70-46.62°0.03°/d11.94° 
11-05-07.70-46.62°0.03°/d11.94° 
11-05-12.39-45.85°0.05°/d11.94° 
11-05-15.20-46.61°0.02°/d11.95° 
11-05-16.53-45.54°0.01°/d11.95° 
11-05-18.08-45.79°-0.00°/d11.95° 
11-05-18.08-45.79°-0.00°/d11.95° 
11-05-19.48-45.35°0.01°/d11.96° 
11-05-20.99-45.24°0.01°/d11.96° 
11-05-20.99-45.24°0.01°/d11.96° 
11-05-23.22-46.54°0.02°/d11.96° 
11-05-23.22-46.54°0.02°/d11.96° 
11-05-24.25-46.42°0.03°/d11.97° 
11-05-26.04-45.61°-0.01°/d11.97° 
11-05-26.04-45.61°-0.01°/d11.97° 
11-05-27.39-45.38°0.02°/d11.97° 
11-05-27.39-45.38°0.02°/d11.97° 
11-05-29.78-45.93°0.03°/d11.98° 
11-05-29.78-45.93°0.03°/d11.98° 
11-05-31.22-46.43°0.02°/d11.98° 
11-05-31.22-46.43°0.02°/d11.98° 
11-05-31.96-45.20°-0.01°/d11.98° 
11-06-03.14-46.45°-0.01°/d11.99° 
11-06-05.48-45.48°-0.02°/d11.99° 
11-06-05.48-45.48°-0.02°/d11.99° 
11-06-07.20-46.47°0.01°/d11.99° 
11-06-08.55-46.01°-0.02°/d12.00° 
11-06-08.55-46.01°-0.02°/d12.00° 
11-06-10.18-46.55°-0.00°/d12.00° 
11-06-11.66-46.49°-0.01°/d12.00° 
11-06-11.66-46.49°-0.01°/d12.00° 
11-06-14.44-45.50°-0.03°/d12.01° 
11-06-14.44-45.50°-0.03°/d12.01° 
11-06-16.24-46.23°0.00°/d12.01° 
11-06-17.38-45.49°-0.02°/d12.01° 
11-06-18.55-46.41°-0.04°/d12.01° 
11-06-20.28-45.97°-0.00°/d12.02° 
11-06-20.95-45.73°-0.04°/d12.02° 
11-06-21.25-46.18°-0.00°/d12.02° 
11-06-22.49-46.19°-0.05°/d12.02° 
11-06-24.13-46.74°0.04°/d12.02° 
11-06-25.20-46.35°0.06°/d12.03° 
11-06-26.02-46.32°0.01°/d12.03° 
11-06-27.98-46.00°0.01°/d12.03° 
11-06-28.13-46.61°0.04°/d12.03° 
11-06-29.07-46.55°0.02°/d12.03° 
11-06-30.88-45.26°0.02°/d12.04° 
11-07-06.04-46.41°0.01°/d12.05° 
11-07-06.04-46.41°0.01°/d12.05° 
11-07-07.49-46.11°-0.00°/d12.05° 
11-07-08.96-45.92°-0.01°/d12.05° 
11-07-08.96-45.92°-0.01°/d12.05° 
11-07-08.96-45.92°-0.01°/d12.05° 
11-07-11.13-46.31°0.02°/d12.06° 
11-07-11.13-46.31°0.02°/d12.06° 
11-07-14.43-45.84°-0.03°/d12.06° 
11-07-14.43-45.84°-0.03°/d12.06° 
11-07-19.12-46.38°-0.00°/d12.03° 
11-07-19.12-46.38°-0.00°/d12.03° 
11-07-22.41-45.91°-0.04°/d12.08° 
11-07-22.41-45.91°-0.04°/d12.08° 
11-07-25.16-45.67°0.06°/d11.94° 
11-07-25.16-45.67°0.06°/d11.94° 
11-07-25.16-45.67°0.06°/d11.94° 
11-07-28.08-46.19°0.03°/d11.92° 
11-07-28.08-46.19°0.03°/d11.92° 
11-07-29.40-45.83°-0.01°/d11.92° 
11-07-31.06-46.23°0.02°/d11.92° 
11-07-31.06-46.23°0.02°/d11.92° 
11-08-01.17-45.44°0.03°/d11.92° 
11-08-02.22-45.18°0.02°/d11.92° 
11-08-03.43-46.13°-0.01°/d11.93° 
11-08-06.38-45.87°-0.02°/d11.93° 
11-08-09.16-45.38°0.01°/d11.94° 
11-08-10.50-46.34°0.00°/d11.94° 
11-08-18.25-45.34°-0.02°/d11.95° 
11-08-18.25-45.34°-0.02°/d11.95° 
11-08-20.34-45.97°-0.04°/d11.96° 
11-08-21.79-45.57°-0.04°/d11.96° 
11-08-21.79-45.57°-0.04°/d11.96° 
11-08-23.38-46.37°-0.03°/d11.97° 
11-08-23.38-46.37°-0.03°/d11.97° 
11-08-27.21-45.50°-0.03°/d11.97° 
11-08-28.38-46.59°-0.04°/d11.97° 
11-09-02.10-45.89°-0.02°/d11.98° 
11-09-03.42-46.93°-0.03°/d11.99° 
11-09-03.42-46.93°-0.03°/d11.99° 
11-09-03.42-46.93°-0.03°/d11.99° 
11-09-07.17-45.63°0.01°/d11.99° 
11-09-07.17-45.63°0.01°/d11.99° 
11-09-08.48-46.52°0.03°/d12.00° 
11-09-10.05-46.03°0.03°/d12.00° 
11-09-10.05-46.03°0.03°/d12.00° 
11-09-11.36-46.80°-0.00°/d12.00° 
11-09-16.68-45.68°-0.01°/d12.01° 
11-09-16.68-45.68°-0.01°/d12.01° 
11-09-17.36-46.85°-0.00°/d12.01° 
11-09-18.87-46.86°-0.01°/d12.01° 
11-09-19.33-46.81°-0.01°/d12.02° 
11-09-20.25-46.34°-0.03°/d12.02° 
11-09-20.25-46.34°-0.03°/d12.02° 
11-09-23.48-46.16°0.06°/d12.02° 
11-09-23.48-46.16°0.06°/d12.02° 
11-09-23.48-46.16°0.06°/d12.02° 
11-09-28.33-46.66°0.02°/d12.03° 
11-09-30.02-45.65°0.04°/d12.03° 
11-09-30.02-45.65°0.04°/d12.03° 
11-10-01.31-46.58°0.02°/d12.04° 
11-10-02.51-45.54°0.04°/d12.04° 
11-10-02.51-45.54°0.04°/d12.04° 
11-10-04.20-45.91°-0.00°/d12.04° 
11-10-06.10-45.32°0.01°/d12.04° 
11-10-06.10-45.32°0.01°/d12.04° 
11-10-07.21-46.01°-0.01°/d12.05° 
11-10-08.73-46.19°-0.00°/d12.05° 
11-10-08.73-46.19°-0.00°/d12.05° 
11-10-08.73-46.19°-0.00°/d12.05° 
11-10-08.73-46.19°-0.00°/d12.05° 
11-10-19.99-45.17°0.02°/d12.07° 
11-10-19.99-45.17°0.02°/d12.07° 
11-10-21.20-46.04°-0.01°/d12.07° 
11-10-22.22-46.16°-0.01°/d12.07° 
11-10-23.22-46.19°-0.01°/d12.08° 
11-10-23.22-46.19°-0.01°/d12.08° 
11-10-28.15-45.85°-0.02°/d12.09° 
11-10-28.15-45.85°-0.02°/d12.09° 
11-11-02.23-46.44°-0.02°/d12.10° 
11-11-02.23-46.44°-0.02°/d12.10° 
11-11-03.19-46.34°-0.03°/d12.10° 
11-11-04.19-46.34°-0.03°/d12.10° 
11-11-04.19-46.34°-0.03°/d12.10° 
11-11-05.16-46.24°-0.03°/d12.10° 
11-11-09.35-46.03°0.00°/d12.11° 
11-11-10.49-45.38°-0.03°/d12.11° 
11-11-10.49-45.38°-0.03°/d12.11° 
11-11-12.06-45.78°-0.04°/d12.12° 
11-11-12.06-45.78°-0.04°/d12.12° 
11-11-14.52-45.60°-0.04°/d12.12° 
11-11-16.11-46.36°-0.05°/d12.12° 
11-11-17.28-46.57°-0.01°/d12.13° 
11-11-17.28-46.57°-0.01°/d12.13° 
11-11-17.28-46.57°-0.01°/d12.13° 
11-11-20.79-46.34°0.06°/d12.13° 
11-11-21.27-46.45°0.05°/d12.13° 
11-11-22.30-46.16°0.06°/d12.13° 
11-11-27.16-46.52°0.02°/d12.14° 
11-11-28.26-46.21°0.04°/d12.14° 

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 retranslační družice pro spojení s nízkolétajícími družicemi (mj. raketoplány) a pro interkontinentální telekomunikaci. Vyrobila ji TRW Inc. (Thompson-Ramo-Woolridge) (nyní Northrop Grumman Space Technology), Redondo Beach, CA (USA). Provozovatelem je firma Contel a NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (USA).

Tříose stabilizovaná družice typu TDRS má nepravidelný tvar o výšce 6 m a šestiúhelníkové základně o příčném rozměru 3 m s panely slunečních baterií o rozpětí 17.4 m s příkonem 2 kW (1.7 kW na konci aktivní životnosti). Energetický systém zahrnuje dvě NiCd akumulátorové baterie s kapacitou po 40 Ah. Anténní systém tvoří: - malá parabolická anténa SGL [=Space to Ground Link] o průměru 2 m pro spojení s pozemní stanicí;

Pro telemetrii, sledování a povely je využíváno pásmo S (2.5/2.6 GHz, 2 provozní a 2 záložní polovodičové zesilovače po 26 W, 8 provozních a 4 záložní polovodičové zesilovače po 3.5 W), pro mezidružicovou komunikaci pásmo C (4/6 GHz, šířka pásma 36 MHz, EIRP 32 dBW, 12 permaktronových zesilovačů po 5 W) a pro mezikontinentální telekomunikaci pásmo Ku (11/14 GHz, šířka 225 MHz, EIRP 45 dBW, 4 provozní a 2 záložní permaktronové zesilovače po 25 W, 2 provozní a 2 záložní permaktronové zesilovače po 1.5 W). Stabilizaci zajišťuje systém silových setrvačníků. Pro korekce dráhy slouží 24 hydrazinových motorků o tahu 4.45 N.

Hlavní pozemní stanice se nachází ve White Sands, NM (USA).

Předpokládaná aktivní životnost je 10 roků.

Předchozí družicí této řady je TDRS-3 (1988-091B), další je TDRS-5 (1991-054B).

Průběh letu

Datum Událost
1989-03-13 14:57:00.017 UT: Vzlet na palubě raketoplánu Discovery (1989-021A).
21:10:12 UT: Družice TDRS-4 s dvoustupňovou urychlovací raketou IUS (výr. č. 2) byla vypuštěna z nákladového prostoru raketoplánu Discovery (1989-021A).
1989-03-14 Družice byla navedena na předběžnou stacionární dráhu.
1989-06-09 Byly ukončeny technické zkoušky družice.
2011-11-28 až
2011-12-07 		Družice byla vyvedena na odkládací dráhu.
2011-12-09 Družice ukončila činnost a její systémy byly vypojeny8.

Literatura

  1. Home Page. - Redondo Beach, CA : Northrop Grumman Space Technology, 2004. - [Cit. 2004-07-17].     (http://www.st.northropgrumman.com/).
  2. Home Page. - Greenbelt, MD : NASA-GSFC, 2007. - [Cit. 2008-06-20].     (http://www.nasa.gov/centers/goddard/home/index.html).
  3. Tracking and Data Relay Satellites. - Greenbelt, MD : NASA-GSFC. - 1998-05-11. - [Cit. 2011-12-26].     (http://msp.gsfc.nasa.gov/TUBE/space2.htm).
  4. TDRSS 2nd Workshop. - Greenbelt, MD : NASA-GSFC. - 1996-06-26. - [Cit. 2011-12-26].     (http://msp.gsfc.nasa.gov/TUBE/pdf/infopack.pdf).
  5. TDRS Project Home Page. Greenbelt, MD : NASA-GSFC, 2000.     (http://tdrs.gsfc.nasa.gov/Tdrsproject/).
  6. TDRS Home Page. Greenbelt, MD : NASA-GSFC, 2000.     (http://nmsp.gsfc.nasa.gov/tdrss/).
  7. STS-29 National Space Transportation System Mission Report. - Houston, TX : NASA-JSC. - 1998-04-30. - [Cit. 2011-12-26].     (http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19920075316_1992075316.pdf).
  8. Tracking satellite retired after 22 years of service / S. Clark. - Spaceflight Now. - 2011-12-25. - [Cit. 2011-12-26].     (http://www.spaceflightnow.com/news/n1112/25tdrs4/).

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Datum poslední úpravy: 2011-12-26 20:48:39 UT Platná stránka HTML 4.01! Popis kódu UTF-8 © 2011 - Petr Lála, Antonín Vítek