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SOLRAD 1 (GREB), 46

Orbit data source: Space-Track

SOLRAD 1 (GREB), 46 is a payload satellite owned by NRL (US) in LEO that was launched on Wed, 22 Jun 1960 UTC via a THOR ABLESTAR launch vehicle from the Air Force Eastern Test Range (AFETR). 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 src="https://www.satcat.com/sats-embedded/46?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/46?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

46, 1960-007B

Orbit

LEO

Last TLE update

6 hours ago

Origin

United States Navy (US)

Manufacturer

NRL

Mission

Defense Sigint

Bus & Motor

NRL 20", Unknown motor

Mass

19 kg wet, 19 kg dry

Launch date (UTC)

1960-06-22 (65 years ago)

Launch vehicle

THOR ABLESTAR

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 0.3 m

Radar Cross Section

0.204 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 6 hours ago

0 SOLRAD 1 (GREB)
1    46U 60007B   25129.52981504  .00001424  00000-0  27776-3 0  9999
2    46  66.6885 247.8851 0203677 237.7499 120.3731 14.53927740398281

Epoch: 2025-05-09T12:42Z

Definitive object data (Epoch: 2025-05-09T12:42:56.019Z)

Latitude

-0.00005°

Longitude

-170.43298°

Altitude

790.169 km

Speed

7.419 km/s

True Right ascension

16h 31m 32s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at TLE epoch

Visualization TLE readout

Latitude

44.43185°

Longitude

-15.91121°

Altitude

758.475 km

Speed

7.459 km/s

Apparent Right ascension

07h 05m 16s

Apparent Declination

60° 14' 47"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

02:27:54

Azimuth

39.994° NE

Elevation

43.739°

Doppler factor

Orbital elements

Apogee altitude

855.6 km

Perigee altitude

566.812 km

Semi-major axis

7,089.343 km

Eccentricity

0.0203677

Inclination

66.6885°

RAAN

247.8851°

Arg. of periapsis

237.7499°

True anomaly

122.36073°

Mean anomaly

120.3731°

Eccentric anomaly

121.3695°

Mean motion

3.63609 °/min

BSTAR

0.00027776

Orbital period

99.01 mins

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Other satellites on launch #7 in the year 1960 (1960-06-22 UTC)

TRANSIT 2A, 45

THOR ABLESTAR R/B, 47

THOR ABLESTAR DEB, 840 (Decayed)

THOR ABLESTAR DEB, 841 (Decayed)

SOLRAD 1 (GREB) Visibility forecast

Observer location: undefined°, undefined°

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.
5 mins	2025-05-09 18:17:08.048Z	40.515° NE	2025-05-09 18:17:08.048Z	40.515° NE	34.723°	2025-05-09 18:22:08.048Z	126.839° SE
6 mins	2025-05-09 19:56:08.048Z	293.944° NW	2025-05-09 19:59:08.048Z	250.036° W	21.023°	2025-05-09 20:02:08.048Z	207.694° SW
9 mins	2025-05-10 08:39:08.048Z	167.383° S	2025-05-10 08:43:08.048Z	107.926° ESE	29.996°	2025-05-10 08:48:08.048Z	46.641° ENE
8 mins	2025-05-10 10:21:08.048Z	249.683° W	2025-05-10 10:25:08.048Z	315.545° NNW	31.037°	2025-05-10 10:29:08.048Z	9.594° NNE
6 mins	2025-05-10 17:20:08.048Z	6.7° NNE	2025-05-10 17:23:08.048Z	50.253° ENE	21.318°	2025-05-10 17:26:08.048Z	92.12° ESE

Authenticating...

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Check out SOLRAD 1 (GREB), 46 on other resources

View SOLRAD 1 (GREB), 46 on NASA - NSSDCA Website

View SOLRAD 1 (GREB), 46 on Heavens-Above

View SOLRAD 1 (GREB), 46 on Keep Track

View SOLRAD 1 (GREB), 46 on Celestrak

View SOLRAD 1 (GREB), 46 on Gunter's Space Page

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