Key statistics
Satellite DELTA 1 R/B(1) at a glance.
Uptime
17803
Days in orbit
Revolutions
≈ 14.0
Per day
Orbit
LEO
Low Earth Orbit
Inclination
28.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 1 R/B(1).
Object identification
Identified? True
Debris? False
Object name: DELTA 1 R/B(1)
International designator: 1977-005B
Object number (NORAD): 9786
Object ID (CCSDS): 9786
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 103.115 minutes
Inclination: 28.0097 deg
SMA: 7284.104 km
Apoapsis: 1204.686 km
Periapsis: 607.252 km
RAAN: 291.2861 deg
Eccentricy: 0.04100946
Argument of periapsis: 154.3656 deg
Mean anomaly: 207.7841 deg
Mean motion: 13.96492436 rev/day
Mean motion (dot): 0.00000378 rev/day2
B* drag term: 0.000087983906 1/REarth
Two-line elements (TLE)
Creation date: Oct. 26, 2025, 2:54 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 25, 2025, 11:19 p.m. UTC
TLE line 0: 0 DELTA 1 R/B(1)
TLE line 1: 1 09786U 77005B 25298.97198661 .00000378 00000-0 87984-4 0 9990
TLE line 2: 2 09786 28.0097 291.2861 0410095 154.3656 207.7841 13.96492436459639
Live tracking on map
Real-time ground track for satellite DELTA 1 R/B(1).
Associated space launch
Military communications satellite providing links between officials of the various NATO nations.
DELTA 1 R/B(1) was lifted into orbit during the mission ‘Delta 2914 | NATO 3B’, on board a Delta 2914 space rocket.
The launch took place on Jan. 28, 1977, 12:50 a.m. from Space Launch Complex 17A.
For more information about the launch, click the button.
Delta 2914 | NATO 3B
Agency: N/A
Status: Launch Successful
Launch date: Jan. 28, 1977, 12:50 a.m. UTC
Rocket: Delta 2914
Launch pad: Space Launch Complex 17A
Location: Cape Canaveral SFS, FL, USA
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