Key statistics
Satellite DELTA 1 R/B(1) at a glance.
Uptime
17553
Days in orbit
Revolutions
≈ 12.7
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
28.3
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: 1977-108B
Object number (NORAD): 10490
Object ID (CCSDS): 10490
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 113.27 minutes
Inclination: 28.2927 deg
SMA: 7754.802 km
Apoapsis: 2268.787 km
Periapsis: 484.548 km
RAAN: 137.8347 deg
Eccentricy: 0.11504095
Argument of periapsis: 126.6018 deg
Mean anomaly: 244.5951 deg
Mean motion: 12.71295952 rev/day
Mean motion (dot): 0.00002853 rev/day2
B* drag term: 0.00070153889 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 4:37 p.m. UTC
TLE line 0: 0 DELTA 1 R/B(1)
TLE line 1: 1 10490U 77108B 25345.69239239 .00002853 00000-0 70154-3 0 9997
TLE line 2: 2 10490 28.2927 137.8347 1150410 126.6018 244.5951 12.71295952195823
Live tracking on map
Real-time ground track for satellite DELTA 1 R/B(1).
In-orbit conjunctions
A list of the most updated potential collisions computed for object DELTA 1 R/B(1).
Associated space launch
European meteorological satellite
DELTA 1 R/B(1) was lifted into orbit during the mission ‘Delta 2914 | Meteosat 1’, on board a Delta 2914 space rocket.
The launch took place on Nov. 23, 1977, 1:35 a.m. from Space Launch Complex 17A.
For more information about the launch, click the button.
Delta 2914 | Meteosat 1
Agency: N/A
Status: Launch Successful
Launch date: Nov. 23, 1977, 1:35 a.m. UTC
Rocket: Delta 2914
Launch pad: Space Launch Complex 17A
Location: Cape Canaveral SFS, FL, USA
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