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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 (61 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

Unknown

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   26047.28844426  .00000028  00000-0  59844-4 0  9992
2 01291  70.0793 133.2976 0023836 278.3938  81.4466 13.94959180 99842

Epoch: 2026-02-16T06:55Z

TLE epoch observation values (Epoch: 2026-02-16T06:55:21.584Z)

Latitude

0.00004°

Longitude

-116.82726°

Altitude

911.076 km

Speed

7.398 km/s

True Right ascension

08h 53m 11s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

17:57:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

926.71 km

Perigee altitude

891.969 km

Semi-major axis

7,287.476 km

Eccentricity

0.00238

Inclination

70.0793°

RAAN

133.2976°

Arg. of periapsis

278.3938°

True anomaly

81.71682°

Mean anomaly

81.4466°

Eccentric anomaly

81.5817°

Mean motion

3.48881 °/min

Orbital period

103.19 mins

BSTAR

0.000059844

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

PORCUPINE 1, 1272

THOR AGENA D R/B, 1245

GGSE 3, 1292

GGSE 2, 1244

SECOR 3, 1208

OPS 4988 (GREB 6), 1271

OPS 4988 DEB, 12099

GGSE 3 DEB, 44043

SURCAL 2, 1310 (Decayed)

OSCAR 3, 1293

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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.
11 mins	2026-02-16 16:04:14.106Z	347.961° N	2026-02-16 16:10:14.106Z	67.528° E	34.334°	2026-02-16 16:15:14.106Z	128.798° SE
8 mins	2026-02-16 17:52:14.106Z	300.244° NW	2026-02-16 17:55:14.106Z	258.964° W	25.726°	2026-02-16 18:00:14.106Z	200.294° SSW
4 mins	2026-02-17 05:27:14.106Z	112.116° ESE	2026-02-17 05:28:14.106Z	101.33° ESE	13.711°	2026-02-17 05:31:14.106Z	70.403° E
10 mins	2026-02-17 07:09:14.106Z	208.737° SW	2026-02-17 07:13:14.106Z	266.735° W	44.494°	2026-02-17 07:19:14.106Z	22.29° NNE
5 mins	2026-02-17 08:58:14.106Z	294.457° NW	2026-02-17 09:00:14.106Z	316.087° NNW	14.234°	2026-02-17 09:03:14.106Z	346.511° N

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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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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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: 2026-02-16T06:55:21.584Z)

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