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RADIATION SAT (5E 1), 671

Orbit data source: Space-Track

RADIATION SAT (5E 1), 671 is a payload satellite owned by USN BuWeps (US) in LEO that was launched on Sat, 28 Sep 1963 UTC via a THOR ABLESTAR launch vehicle from the Air Force Western Test Range (AFWTR). 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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Identifier

671, 1963-038C

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

APL

Mission

Spacecraft

Bus & Motor

TRANSIT 5, Unknown motor

Mass

59 kg wet, 59 kg dry

Launch date (UTC)

1963-09-28 (63 years ago)

Launch vehicle

THOR ABLESTAR

Launch site

Air Force Western Test Range (AFWTR)

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: 3 days ago

TLE from 3 days ago

0 RADIATION SAT (5E 1)
1 00671U 63038C   26155.05165761  .00000067  00000-0  96884-4 0  9996
2 00671  89.9634 333.0691 0041124  30.6800 329.6740 13.45223618 73285

Epoch: 2026-06-04T01:14Z

TLE epoch observation values (Epoch: 2026-06-04T01:14:23.217Z)

Latitude

-0.00004°

Longitude

61.97089°

Altitude

1,066.348 km

Speed

7.332 km/s

True Right ascension

22h 12m 16s

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

22:49:09

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,117.64 km

Perigee altitude

1,056.241 km

Semi-major axis

7,465.078 km

Eccentricity

0.00411

Inclination

89.9634°

RAAN

333.0691°

Arg. of periapsis

30.68°

True anomaly

329.435°

Mean anomaly

329.674°

Eccentric anomaly

329.55461°

Mean motion

3.36505 °/min

Orbital period

106.98 mins

BSTAR

0.000096884

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Other satellites on launch #38 in the year 1963 (1963-09-28 UTC)

THOR ABLESTAR R/B, 669

TRANSIT 5B-1, 670

TRANSIT 5B-1 DEB, 2097

THOR ABLESTAR DEB, 745

TRANSIT 5B-1 DEB, 3166

THOR ABLESTAR DEB, 38521

TRANSIT 5B-1 DEB, 4587 (Decayed)

TRANSIT 5B-1 DEB, 1528 (Decayed)

TRANSIT 5B-1 DEB, 12943 (Decayed)

TRANSIT 5B-1 DEB, 27479 (Decayed)

TRANSIT 5B-1 DEB, 20470 (Decayed)

THOR ABLESTAR DEB, 672

TRANSIT 5B-1 DEB, 19062 (Decayed)

TRANSIT 5B-1 DEB, 38522 (Decayed)

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RADIATION SAT (5E 1) 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.
9 mins	2026-06-07 13:15:54.486Z	228.797° WSW	2026-06-07 13:20:54.486Z	285.545° WNW	23.452°	2026-06-07 13:24:54.486Z	328.034° NNW
8 mins	2026-06-07 22:41:54.486Z	43.603° NE	2026-06-07 22:44:54.486Z	76.092° E	20.801°	2026-06-07 22:49:54.486Z	126.533° SE
12 mins	2026-06-08 00:26:54.486Z	352.176° N	2026-06-08 00:32:54.486Z	260.638° W	40.353°	2026-06-08 00:38:54.486Z	200.392° SSW
8 mins	2026-06-08 10:42:54.486Z	111.487° ESE	2026-06-08 10:45:54.486Z	78.628° E	20.935°	2026-06-08 10:50:54.486Z	27.068° NE
11 mins	2026-06-08 12:27:54.486Z	198.388° SSW	2026-06-08 12:32:54.486Z	282.252° WNW	39.651°	2026-06-08 12:38:54.486Z	349.086° N

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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 RADIATION SAT (5E 1), 671 on other resources

View RADIATION SAT (5E 1), 671 on NASA - NSSDCA Website

View RADIATION SAT (5E 1), 671 on Heavens-Above

View RADIATION SAT (5E 1), 671 on Keep Track

View RADIATION SAT (5E 1), 671 on Celestrak

View RADIATION SAT (5E 1), 671 on Gunter's Space Page

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

RADIATION SAT (5E 1), 671

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-04T01:14:23.217Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #38 in the year 1963 (1963-09-28 UTC)

RADIATION SAT (5E 1) Visibility forecast

Co-orbital & Co-planar RSOs

Check out RADIATION SAT (5E 1), 671 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 days ago