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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: 4 hours ago

TLE from 4 hours ago

0 SOLRAD 1 (GREB)
1    46U 60007B   26037.15095207  .00000893  00000-0  18465-3 0  9997
2    46  66.6863 225.4296 0191789  29.9239 331.2670 14.54635276437948

Epoch: 2026-02-06T03:37Z

TLE epoch observation values (Epoch: 2026-02-06T03:37:22.258Z)

Latitude

-0.00002°

Longitude

34.7939°

Altitude

594.07 km

Speed

7.626 km/s

True Right ascension

15h 01m 43s

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

09:24:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

844.828 km

Perigee altitude

572.985 km

Semi-major axis

7,087.043 km

Eccentricity

0.01918

Inclination

66.6863°

RAAN

225.4296°

Arg. of periapsis

29.9239°

True anomaly

330.18788°

Mean anomaly

331.267°

Eccentric anomaly

330.72973°

Mean motion

3.63786 °/min

Orbital period

98.96 mins

BSTAR

0.00018465

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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, 841 (Decayed)

THOR ABLESTAR DEB, 840 (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.
6 mins	2026-02-06 13:39:27.739Z	176.199° S	2026-02-06 13:42:27.739Z	110.899° ESE	32.278°	2026-02-06 13:45:27.739Z	49.422° ENE
4 mins	2026-02-06 15:22:27.739Z	280.173° WNW	2026-02-06 15:24:27.739Z	316.534° NNW	18.495°	2026-02-06 15:26:27.739Z	349.385° N
7 mins	2026-02-06 22:18:27.739Z	5.6° NNE	2026-02-06 22:21:27.739Z	59.145° ENE	25.763°	2026-02-06 22:25:27.739Z	111.128° ESE
8 mins	2026-02-06 23:59:27.739Z	306.974° NW	2026-02-07 00:02:27.739Z	258.741° W	31.076°	2026-02-07 00:07:27.739Z	182.698° 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: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2026-02-06T03:37:22.258Z)

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: 4 hours ago