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

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ISO8601 Format

Identifier

46, 1960-007B

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

NRL

Mission

Spacecraft

Bus & Motor

NRL 20", Unknown motor

Mass

19 kg wet, 19 kg dry

Launch date (UTC)

1960-06-22 (66 years ago)

Launch vehicle

THOR ABLESTAR

Launch site

Air Force Eastern Test Range (AFETR)

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 1 (GREB)
1 00046U 60007B   26084.45333226  .00001152  00000-0  22907-3 0  9993
2 00046  66.6863  96.5158 0196210 354.0695   5.8091 14.54718253444827

Epoch: 2026-03-25T10:52Z

TLE epoch observation values (Epoch: 2026-03-25T10:52:47.907Z)

Latitude

-0.00002°

Longitude

110.39976°

Altitude

574.056 km

Speed

7.648 km/s

True Right ascension

06h 26m 03s

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

23:38:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

847.686 km

Perigee altitude

569.587 km

Semi-major axis

7,086.774 km

Eccentricity

0.01962

Inclination

66.6863°

RAAN

96.5158°

Arg. of periapsis

354.0695°

True anomaly

6.04236°

Mean anomaly

5.8091°

Eccentric anomaly

5.92515°

Mean motion

3.63806 °/min

Orbital period

98.95 mins

BSTAR

0.00022907

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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)

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SOLRAD 1 (GREB) 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.
7 mins	2026-03-26 01:51:39.045Z	175.407° S	2026-03-26 01:54:39.045Z	117.488° SE	31.899°	2026-03-26 01:58:39.045Z	45.855° ENE
5 mins	2026-03-26 03:34:39.045Z	276.494° WNW	2026-03-26 03:36:39.045Z	312.418° NW	20.813°	2026-03-26 03:39:39.045Z	358.268° N
8 mins	2026-03-26 10:30:39.045Z	0.338° NNE	2026-03-26 10:33:39.045Z	45.289° ENE	26.859°	2026-03-26 10:38:39.045Z	111.671° ESE
8 mins	2026-03-26 12:12:39.045Z	305.087° NW	2026-03-26 12:15:39.045Z	250.854° W	33.532°	2026-03-26 12:20:39.045Z	180.672° SSW

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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 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.

SOLRAD 1 (GREB), 46

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: 2026-03-25T10:52:47.907Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SOLRAD 1 (GREB) Visibility forecast

Co-orbital & Co-planar RSOs

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

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago