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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

15 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 15 hours ago

0 SOLRAD 1 (GREB)
1 00046U 60007B   25186.21009585  .00000410  00000-0  96275-4 0  9993
2 00046  66.6888  93.5753 0199209 196.1693 163.3003 14.54019051406546

Epoch: 2025-07-05T05:02Z

TLE epoch observation values (Epoch: 2025-07-05T05:02:32.281Z)

Latitude

-0.00006°

Longitude

94.48936°

Altitude

850.219 km

Speed

7.357 km/s

True Right ascension

06h 14m 18s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-27.89148°

Longitude

79.70852°

Altitude

818.659 km

Speed

7.392 km/s

Apparent Right ascension

01h 54m 21s

Apparent Declination

-62° 56' 31"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

07:41:04

Azimuth

212.976° SW

Elevation

-33.451°

Doppler factor

Orbital elements

Apogee altitude

852.129 km

Perigee altitude

569.689 km

Semi-major axis

7,089.046 km

Eccentricity

0.01992

Inclination

66.6888°

RAAN

93.5753°

Arg. of periapsis

196.1693°

True anomaly

Unknown

Mean anomaly

163.3003°

Eccentric anomaly

Unknown

Mean motion

3.63631 °/min

Orbital period

99 mins

BSTAR

0.000096275

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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.
10 mins	2025-07-05 20:02:19.303Z	228.234° WSW	2025-07-05 20:07:19.303Z	296.04° NW	38.059°	2025-07-05 20:12:19.303Z	17.897° NNE
4 mins	2025-07-06 03:03:19.303Z	19.612° NNE	2025-07-06 03:05:19.303Z	46.907° ENE	13.608°	2025-07-06 03:07:19.303Z	73.162° E
7 mins	2025-07-06 04:44:19.303Z	327.4° NNW	2025-07-06 04:47:19.303Z	257.825° W	44.554°	2025-07-06 04:51:19.303Z	156.545° SSE
9 mins	2025-07-06 19:09:19.303Z	200.134° SSW	2025-07-06 19:13:19.303Z	90.891° ESE	44.203°	2025-07-06 19:18:19.303Z	32.194° NE

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.