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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

22 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 22 hours ago

0 SOLRAD 1 (GREB)
1 00046U 60007B   25191.09383381  .00000339  00000-0  83615-4 0  9998
2 00046  66.6887  80.2789 0198722 192.5376 167.0754 14.54023636407251

Epoch: 2025-07-10T02:15Z

TLE epoch observation values (Epoch: 2025-07-10T02:15:07.241Z)

Latitude

-0.00001°

Longitude

118.23367°

Altitude

852.157 km

Speed

7.355 km/s

True Right ascension

05h 21m 06s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

57.05308°

Longitude

-105.65928°

Altitude

688.574 km

Speed

7.535 km/s

Apparent Right ascension

21h 08m 52s

Apparent Declination

37° 33' 01"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

12:31:05

Azimuth

37.752° NE

Elevation

0.271°

Doppler factor

Orbital elements

Apogee altitude

851.769 km

Perigee altitude

570.02 km

Semi-major axis

7,089.031 km

Eccentricity

0.01987

Inclination

66.6887°

RAAN

80.2789°

Arg. of periapsis

192.5376°

True anomaly

Unknown

Mean anomaly

167.0754°

Eccentric anomaly

Unknown

Mean motion

3.63633 °/min

Orbital period

99 mins

BSTAR

0.000083615

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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.
4 mins	2025-07-11 01:54:53.371Z	17.022° NNE	2025-07-11 01:56:53.371Z	44.985° NE	14.6°	2025-07-11 01:58:53.371Z	72.989° E
7 mins	2025-07-11 03:35:53.371Z	324.246° NNW	2025-07-11 03:38:53.371Z	264.385° W	43.204°	2025-07-11 03:42:53.371Z	160.891° S
9 mins	2025-07-11 18:00:53.371Z	204.811° SW	2025-07-11 18:04:53.371Z	110.673° ESE	44.897°	2025-07-11 18:09:53.371Z	30.404° NE
5 mins	2025-07-11 19:44:53.371Z	286.258° WNW	2025-07-11 19:46:53.371Z	310.425° NW	16.596°	2025-07-11 19:49:53.371Z	347.916° N

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.