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OPS 4988 (GREB 6), 1271

Orbit data source: Space-Track

OPS 4988 (GREB 6), 1271 is an American payload satellite in LEO that was launched on Tue, 09 Mar 1965 UTC via a THOR SLV-2 AGENA D 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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<iframe src="https://www.satcat.com/sats-embedded/1271?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/1271?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

1271, 1965-016A

Orbit

LEO

Last TLE update

12 hours ago

Origin

National Reconnaissance Office (US)

Manufacturer

NRL

Mission

Defense Sigint

Bus & Motor

NRL 24", Unknown motor

Mass

48 kg wet, 48 kg dry

Launch date (UTC)

1965-03-09 (60 years ago)

Launch vehicle

THOR SLV-2 AGENA D

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 0.5 m

Radar Cross Section

0.196 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 12 hours ago

0 OPS 4988 (GREB 6)
1  1271U 65016A   25125.82707183  .00000088  00000-0  10165-3 0  9992
2  1271  70.0791 306.5275 0023072 247.9412 208.6137 13.96566905 62508

Epoch: 2025-05-05T19:50Z

Definitive object data (Epoch: 2025-05-05T19:50:59.006Z)

Latitude

69.2052°

Longitude

-106.83428°

Altitude

931.839 km

Speed

7.385 km/s

True Right ascension

03h 39m 23s

True Declination

69° 05' 37"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

46.34681°

Longitude

-58.4378°

Altitude

919.933 km

Speed

7.393 km/s

Apparent Right ascension

05h 27m 43s

Apparent Declination

7° 18' 58"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

15:59:48

Azimuth

331.642° NNW

Elevation

-38.589°

Doppler factor

Orbital elements

Apogee altitude

920.543 km

Perigee altitude

886.941 km

Semi-major axis

7,281.879 km

Eccentricity

0.0023072

Inclination

70.0791°

RAAN

306.5275°

Arg. of periapsis

247.9412°

True anomaly

208.48741°

Mean anomaly

208.6137°

Eccentric anomaly

208.55052°

Mean motion

3.49283 °/min

BSTAR

0.00010165

Orbital period

103.07 mins

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Other satellites on launch #16 in the year 1965 (1965-03-09 UTC)

SURCAL 2, 1310 (Decayed)

PORCUPINE 1, 1272

THOR AGENA D R/B, 1245

OPS 4988 DEB, 12099

GGSE 3 DEB, 44043

OPS 4988 (GREB 6) 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	2025-05-06 12:41:32.152Z	168.478° S	2025-05-06 12:46:32.152Z	96.356° ESE	31.965°	2025-05-06 12:51:32.152Z	40.105° NE
9 mins	2025-05-06 14:27:32.152Z	247.402° WSW	2025-05-06 14:31:32.152Z	300.102° NW	28.602°	2025-05-06 14:36:32.152Z	4.252° NNE
7 mins	2025-05-06 21:44:32.152Z	13.918° NNE	2025-05-06 21:47:32.152Z	53.781° ENE	22.512°	2025-05-06 21:51:32.152Z	101.12° ESE
9 mins	2025-05-06 23:29:32.152Z	320.573° NNW	2025-05-06 23:33:32.152Z	244.269° WSW	39.424°	2025-05-06 23:38:32.152Z	176.359° S

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Check out OPS 4988 (GREB 6), 1271 on other resources

View OPS 4988 (GREB 6), 1271 on NASA - NSSDCA Website

View OPS 4988 (GREB 6), 1271 on Heavens-Above

View OPS 4988 (GREB 6), 1271 on Keep Track

View OPS 4988 (GREB 6), 1271 on Celestrak

View OPS 4988 (GREB 6), 1271 on Gunter's Space Page

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