Key statistics
Satellite DELTA 1 R/B at a glance.
Uptime
20760
Days in orbit
Revolutions
≈ 9.3
Per day
Orbit
HEO
HEO
Inclination
120.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 1 R/B.
Object identification
Identified? True
Debris? False
Object name: DELTA 1 R/B
International designator: 1968-055B
Object number (NORAD): 3315
Object ID (CCSDS): 3315
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 155.566 minutes
Inclination: 120.6804 deg
SMA: 9581.57 km
Apoapsis: 5730.319 km
Periapsis: 676.551 km
RAAN: 10.3815 deg
Eccentricy: 0.2637234
Argument of periapsis: 80.1306 deg
Mean anomaly: 336.6653 deg
Mean motion: 9.25652045 rev/day
Mean motion (dot): 0.00000101 rev/day2
B* drag term: 0.00031778 1/REarth
Two-line elements (TLE)
Creation date: May 6, 2025, 3:54 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 5, 2025, 3:47 p.m. UTC
TLE line 0: 0 DELTA 1 R/B
TLE line 1: 1 03315U 68055B 25125.65816216 .00000101 00000-0 31778-3 0 9997
TLE line 2: 2 03315 120.6804 10.3815 2637234 80.1306 336.6653 9.25652045903820
Live tracking on map
Real-time ground track for satellite DELTA 1 R/B.
Associated space launch
The RAE A (Radio Astronomy Explorer A) spacecraft measured the intensity of celestial radio sources, particularly the sun, as a function of time, direction, and frequency (0.2 to 20 MHz).
DELTA 1 R/B was lifted into orbit during the mission ‘Thor Delta J | RAE 1’, on board a Thor Delta J space rocket.
The launch took place on July 4, 1968, 5:26 p.m. from Space Launch Complex 2E.
For more information about the launch, click the button.
Thor Delta J | RAE 1
Agency: N/A
Status: Launch Successful
Launch date: July 4, 1968, 5:26 p.m. UTC
Rocket: Thor Delta J
Launch pad: Space Launch Complex 2E
Location: Vandenberg SFB, CA, USA
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