THOR AGENA D R/B

Satellite information

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Satellite Type and Status

ROCKET BODYIN ORBIT

Key statistics

Satellite THOR AGENA D R/B at a glance.

Uptime

22458

Days in orbit

Revolutions

≈ 14.3

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

99.8

Latest

Satellite identification and parameters

Extended collection of information and parameters for THOR AGENA D R/B.

Object identification

Identified? True

Debris? False

Object name: THOR AGENA D R/B

International designator: 1964-031C

Object number (NORAD): 815

Object ID (CCSDS): 815

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.811 minutes

Inclination: 99.8066 deg

SMA: 7175.188 km

Apoapsis: 805.899 km

Periapsis: 788.206 km

RAAN: 268.4867 deg

Eccentricy: 0.00123291

Argument of periapsis: 104.1619 deg

Mean anomaly: 256.0929 deg

Mean motion: 14.28409964 rev/day

Mean motion (dot): 0.00000332 rev/day²

B* drag term: 0.00015443278 1/R_Earth

Two-line elements (TLE)

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

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 12, 2025, 5:48 a.m. UTC

TLE line 0: 0 THOR AGENA D R/B

TLE line 1: 1 00815U 64031C 25346.24210260 .00000332 00000-0 15443-3 0 9993

TLE line 2: 2 00815 99.8066 268.4867 0012329 104.1619 256.0929 14.28409964194312

Live tracking on map

Real-time ground track for satellite THOR AGENA D R/B.

In-orbit conjunctions

A list of the most updated potential collisions computed for object THOR AGENA D R/B.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
METEOR 2-8 DEB	LEO	2025-10-19 14:09:23	0.000101299	384.0 (m)	DEBRIS
SL-16 DEB	LEO	2025-06-10 01:17:04	0.0005905501	92.0 (m)	DEBRIS
SL-12 DEB	LEO	2025-04-28 05:38:54	0.0002930541	326.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2025-01-13 12:36:10	0.000145332	239.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2024-11-10 13:45:26	0.0004748621	670.0 (m)	DEBRIS

Associated space launch

The DSAP-1 (Defense Satellite Application Program Block 1) satellites series, also known as P-35, was the first series of military meteorologal satellites of the USA.

THOR AGENA D R/B was lifted into orbit during the mission ‘Thor SLV-2 Agena D | DSAP-1 F8 & F9’, on board a Thor SLV-2 Agena D space rocket.

The launch took place on June 18, 1964, 4:56 a.m. from Space Launch Complex 1W.

For more information about the launch, click the button.

Thor SLV-2 Agena D | DSAP-1 F8 & F9

Agency: N/A

Status: Launch Successful

Launch date: June 18, 1964, 4:56 a.m. UTC

Rocket: Thor SLV-2 Agena D

Launch pad: Space Launch Complex 1W

Location: Vandenberg SFB, CA, USA

...

Go to the launch

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