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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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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

SPHERE + ANT, 0.8 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 SOLRAD 7B
1 01291U 65016D   26208.83956701  .00000003  00000-0  41281-4 0  9991
2 01291  70.0792 149.8374 0018658  64.4523 295.8509 13.94979864122371

Epoch: 2026-07-27T20:08Z

TLE epoch observation values (Epoch: 2026-07-27T20:08:58.589Z)

Latitude

-0.00004°

Longitude

-97.92412°

Altitude

907.637 km

Speed

7.401 km/s

True Right ascension

09h 59m 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

22:37:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

922.864 km

Perigee altitude

895.67 km

Semi-major axis

7,287.404 km

Eccentricity

0.00187

Inclination

70.0792°

RAAN

149.8374°

Arg. of periapsis

64.4523°

True anomaly

295.65829°

Mean anomaly

295.8509°

Eccentric anomaly

295.75462°

Mean motion

3.48886 °/min

Orbital period

103.19 mins

BSTAR

0.000041281

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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

OPS 4988 DEB, 12099

GGSE 3 DEB, 44043

OPS 4988 (GREB 6), 1271

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.
9 mins	2026-07-28 20:21:06.150Z	154.006° SSE	2026-07-28 20:26:06.150Z	95.064° ESE	22.456°	2026-07-28 20:30:06.150Z	51.347° ENE
9 mins	2026-07-28 22:07:06.150Z	233.39° WSW	2026-07-28 22:11:06.150Z	304.289° NW	36.62°	2026-07-28 22:16:06.150Z	12.011° NNE
5 mins	2026-07-29 05:25:06.150Z	27.219° NE	2026-07-29 05:27:06.150Z	50.977° ENE	16.281°	2026-07-29 05:30:06.150Z	83.245° E
10 mins	2026-07-29 07:09:06.150Z	333.687° NNW	2026-07-29 07:13:06.150Z	289.297° WNW	44.74°	2026-07-29 07:19:06.150Z	160.043° S

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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: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-07-27T20:08:58.589Z)

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: 13 hours ago