SOLRAD 7B

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite SOLRAD 7B at a glance.

Uptime

22194

Days in orbit

Revolutions

≈ 13.9

Per day

Orbit

LEO

Low Earth Orbit

Inclination

70.1

Latest

Satellite identification and parameters

Extended collection of information and parameters for SOLRAD 7B.

Object identification

Identified? True

Debris? False

Object name: SOLRAD 7B

International designator: 1965-016D

Object number (NORAD): 1291

Object ID (CCSDS): 1291

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: MEDIUM

Orbital parameters

Period: 103.23 minutes

Inclination: 70.0797 deg

SMA: 7289.484 km

Apoapsis: 926.58 km

Periapsis: 896.118 km

RAAN: 273.6932 deg

Eccentricy: 0.00208945

Argument of periapsis: 358.3569 deg

Mean anomaly: 1.7465 deg

Mean motion: 13.94946702 rev/day

Mean motion (dot): 0.0000007 rev/day2

B* drag term: 0.000090914435 1/REarth

Two-line elements (TLE)

Creation date: Dec. 12, 2025, 10:14 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 12, 2025, 5:56 a.m. UTC

TLE line 0: 0 SOLRAD 7B

TLE line 1: 1 01291U 65016D 25346.24750088 .00000070 00000-0 90914-4 0 9999

TLE line 2: 2 01291 70.0797 273.6932 0020894 358.3569 1.7465 13.94946702 90635

Live tracking on map

Real-time ground track for satellite SOLRAD 7B.

In-orbit conjunctions

A list of the most updated potential collisions computed for object SOLRAD 7B.

Target Orbit TCA Probability of collision Miss distance Type
COSMOS 1249 COOLANT LEO 2024-12-18 13:54:00 0.0004047151 35.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2024-08-31 13:08:01 0.0001990997 683.0 (m) DEBRIS
CZ-4 DEB SSO 2024-08-17 03:44:44 0.0005443401 342.0 (m) DEBRIS

Associated space launch

Poppy was the follow-on ELINT system, which succeeded the Grab ELINT satellite system.

SOLRAD 7B was lifted into orbit during the mission ‘Thor SLV-2 Agena D | Poppy 6A,B,C,D’, on board a Thor SLV-2 Agena D space rocket.

The launch took place on March 9, 1965, 6:29 p.m. from Space Launch Complex 2W.

For more information about the launch, click the button.

Launch to space Thor SLV-2 Agena D | Poppy 6A,B,C,D
Thor SLV-2 Agena D | Poppy 6A,B,C,D

Agency: N/A

Status: Launch Successful

Launch date: March 9, 1965, 6:29 p.m. UTC

Rocket: Thor SLV-2 Agena D

Launch pad: Space Launch Complex 2W

Location: Vandenberg SFB, CA, USA

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