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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

14 hours 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 14 hours ago

0 OPS 0856
1 02403U 66077A   25189.69923939 -.00000010  00000-0 -56286-2 0  9992
2 02403  90.3400 272.3663 0009854  70.2356 289.9557  8.59851789496931

Epoch: 2025-07-08T16:46Z

TLE epoch observation values (Epoch: 2025-07-08T16:46:54.283Z)

Latitude

-0.00008°

Longitude

93.74964°

Altitude

3,685.032 km

Speed

6.295 km/s

True Right ascension

18h 09m 27s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

68.84585°

Longitude

92.88162°

Altitude

3,688.207 km

Speed

6.301 km/s

Apparent Right ascension

10h 06m 13s

Apparent Declination

69° 57' 12"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

19:25:55

Azimuth

346.056° N

Elevation

23.679°

Doppler factor

Orbital elements

Apogee altitude

3,693.956 km

Perigee altitude

3,674.125 km

Semi-major axis

10,062.178 km

Eccentricity

0.00099

Inclination

90.34°

RAAN

272.3663°

Arg. of periapsis

70.2356°

True anomaly

Unknown

Mean anomaly

289.9557°

Eccentric anomaly

Unknown

Mean motion

2.15033 °/min

Orbital period

167.42 mins

BSTAR

-0.0056286

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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.
5 mins	2025-07-09 07:16:27.404Z	346.028° N	2025-07-09 07:16:27.404Z	346.028° N	21.881°	2025-07-09 07:21:27.404Z	353.952° N
33 mins	2025-07-09 15:55:27.404Z	12.027° NNE	2025-07-09 16:11:27.404Z	76.977° E	33.166°	2025-07-09 16:28:27.404Z	143.968° SSE
34 mins	2025-07-09 18:42:27.404Z	356.44° N	2025-07-09 18:58:27.404Z	288.138° WNW	40.972°	2025-07-09 19:16:27.404Z	211.214° SW
11 mins	2025-07-09 21:33:27.404Z	334.363° NNW	2025-07-09 21:38:27.404Z	317.56° NNW	12.671°	2025-07-09 21:44:27.404Z	297.53° NW
19 mins	2025-07-10 02:33:27.404Z	80.398° E	2025-07-10 02:42:27.404Z	49.159° ENE	17.111°	2025-07-10 02:52:27.404Z	15.103° NNE
35 mins	2025-07-10 05:06:27.404Z	159.422° S	2025-07-10 05:23:27.404Z	83.186° E	43.805°	2025-07-10 05:41:27.404Z	0.587° NNE

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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.