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SOLRAD 7B, 1291

Orbit data source: Space-Track

SOLRAD 7B, 1291 is an American payload satellite in LEO that was launched on Tue, 09 Mar 1965 UTC via a THOR SLV-2 AGENA D launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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Iframe URL

https://www.satcat.com/sats-embedded/1291?theme=dark&initialShowStats=false

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Identifier

1291, 1965-016D

Orbit

LEO

Country

Related business

National Reconnaissance Office (US)

Manufacturer

NRL

Mission

Spacecraft

Bus & Motor

NRL 24", Unknown motor

Mass

47 kg wet, 47 kg dry

Launch date (UTC)

1965-03-09 (62 years ago)

Launch vehicle

THOR SLV-2 AGENA D

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

SPHERE + ANT, 1.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 SOLRAD 7B
1 01291U 65016D   26317.25608332  .00000025  00000-0  57709-4 0  9998
2 01291  70.0788 279.3351 0023930 283.7194  76.1248 13.94990540137492

Epoch: 2026-11-13T06:08Z

TLE epoch observation values (Epoch: 2026-11-13T06:08:45.598Z)

Latitude

-0.00003°

Longitude

134.76726°

Altitude

909.366 km

Speed

7.4 km/s

True Right ascension

18h 37m 20s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

10:09:14

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

926.669 km

Perigee altitude

891.791 km

Semi-major axis

7,287.367 km

Eccentricity

0.00239

Inclination

70.0788°

RAAN

279.3351°

Arg. of periapsis

283.7194°

True anomaly

76.39121°

Mean anomaly

76.1248°

Eccentric anomaly

76.25798°

Mean motion

3.48889 °/min

Orbital period

103.18 mins

BSTAR

0.000057709

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Other satellites on launch #16 in the year 1965 (1965-03-09 UTC)

OPS 4988 (GREB 6), 1271

THOR AGENA D R/B, 1245

OSCAR 3, 1293

SURCAL 2, 1310 (Decayed)

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SOLRAD 7B Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
8 mins	2026-11-13 21:44:58.139Z	144.481° SSE	2026-11-13 21:48:58.139Z	101.324° ESE	20.323°	2026-11-13 21:52:58.139Z	57.663° ENE
10 mins	2026-11-13 23:29:58.139Z	222.886° SW	2026-11-13 23:33:58.139Z	288.069° WNW	59.237°	2026-11-13 23:39:58.139Z	17.041° NNE
5 mins	2026-11-14 06:47:58.139Z	22.679° NE	2026-11-14 06:49:58.139Z	43.841° NE	14.748°	2026-11-14 06:52:58.139Z	74.763° E
10 mins	2026-11-14 08:31:58.139Z	338.912° N	2026-11-14 08:36:58.139Z	89.977° E	78.915°	2026-11-14 08:41:58.139Z	152.018° SSE
4 mins	2026-11-14 10:19:58.139Z	280.358° WNW	2026-11-14 10:21:58.139Z	258.83° W	14.426°	2026-11-14 10:23:58.139Z	238.045° WSW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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Check out SOLRAD 7B, 1291 on other resources

View SOLRAD 7B, 1291 on NASA - NSSDCA Website

View SOLRAD 7B, 1291 on Heavens-Above

View SOLRAD 7B, 1291 on Keep Track

View SOLRAD 7B, 1291 on Celestrak

View SOLRAD 7B, 1291 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

SOLRAD 7B, 1291

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-11-13T06:08:45.598Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #16 in the year 1965 (1965-03-09 UTC)

SOLRAD 7B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SOLRAD 7B, 1291 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago