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OPS 0856, 2403

Orbit data source: Space-Track

OPS 0856, 2403 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Fri, 19 Aug 1966 UTC via an ATLAS SLV-3 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/2403?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/2403?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2403, 1966-077A

Orbit

LEO

Last TLE update

1 day ago

Origin

United States Space Force (US)

Manufacturer

LMSC

Mission

Defense Early Warn

Bus & Motor

MIDAS, Unknown motor

Mass

~2,000 kg wet, ~1,000 kg dry

Launch date (UTC)

1966-08-19 (59 years ago)

Launch vehicle

ATLAS SLV-3 AGENA D

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cone + Cyl + 2 Pan, 3 m

Radar Cross Section

4.418 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 OPS 0856
1 02403U 66077A   25128.38965103  .00000043  00000-0  20380-1 0  9999
2 02403  90.3340 271.6357 0010477 126.9677 233.2135  8.59851765491667

Epoch: 2025-05-08T09:21Z

Definitive object data (Epoch: 2025-05-08T09:21:05.848Z)

Latitude

-0.00005°

Longitude

-95.09951°

Altitude

3,694.731 km

Speed

6.289 km/s

True Right ascension

18h 06m 32s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

16.2505°

Longitude

-95.18137°

Altitude

3,691.313 km

Speed

6.292 km/s

Apparent Right ascension

16h 22m 03s

Apparent Declination

-6° 28' 49"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

00:21:51

Azimuth

285.065° WNW

Elevation

-26.928°

Doppler factor

Orbital elements

Apogee altitude

3,694.583 km

Perigee altitude

3,673.499 km

Semi-major axis

10,062.178 km

Eccentricity

0.0010477

Inclination

90.334°

RAAN

271.6357°

Arg. of periapsis

126.9677°

True anomaly

233.11742°

Mean anomaly

233.2135°

Eccentric anomaly

233.16545°

Mean motion

2.15033 °/min

BSTAR

0.02038

Orbital period

167.42 mins

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Other satellites on launch #77 in the year 1966 (1966-08-19 UTC)

SECOR 7 (EGRS 7), 2411

OPS 0856 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.
32 mins	2025-05-09 19:39:24.814Z	12.047° NNE	2025-05-09 19:55:24.814Z	74.249° E	30.71°	2025-05-09 20:11:24.814Z	137.014° SSE
35 mins	2025-05-09 22:26:24.814Z	357.854° N	2025-05-09 22:43:24.814Z	282.036° WNW	42.416°	2025-05-09 23:01:24.814Z	206.11° SW
14 mins	2025-05-10 01:17:24.814Z	336.215° NNW	2025-05-10 01:23:24.814Z	315.637° NNW	14.553°	2025-05-10 01:31:24.814Z	288.468° WNW
15 mins	2025-05-10 06:20:24.814Z	71.071° E	2025-05-10 06:27:24.814Z	47.092° ENE	15.075°	2025-05-10 06:35:24.814Z	19.836° NNE
35 mins	2025-05-10 08:51:24.814Z	154.054° SSE	2025-05-10 09:08:24.814Z	74.19° E	42.726°	2025-05-10 09:26:24.814Z	1.216° NNE
31 mins	2025-05-10 11:41:24.814Z	226.809° WSW	2025-05-10 11:56:24.814Z	287.144° WNW	30.13°	2025-05-10 12:12:24.814Z	348.236° N

Authenticating...

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Check out OPS 0856, 2403 on other resources

View OPS 0856, 2403 on NASA - NSSDCA Website

View OPS 0856, 2403 on Heavens-Above

View OPS 0856, 2403 on Keep Track

View OPS 0856, 2403 on Celestrak

View OPS 0856, 2403 on Gunter's Space Page

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