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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   25181.20663836 -.00000010  00000-0 -59383-2 0  9999
2 02403  90.3406 272.2640 0009992  78.2541 281.9431  8.59852042496204

Epoch: 2025-06-30T04:57Z

TLE epoch observation values (Epoch: 2025-06-30T04:57:33.554Z)

Latitude

-0.00004°

Longitude

-80.64558°

Altitude

3,686.335 km

Speed

6.295 km/s

True Right ascension

18h 09m 03s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

-36.12107°

Longitude

-80.38417°

Altitude

3,703.378 km

Speed

6.287 km/s

Apparent Right ascension

15h 59m 48s

Apparent Declination

-64° 51' 41"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

20:14:11

Azimuth

205.012° SW

Elevation

-25.849°

Doppler factor

Orbital elements

Apogee altitude

3,694.093 km

Perigee altitude

3,673.984 km

Semi-major axis

10,062.176 km

Eccentricity

0.001

Inclination

90.3406°

RAAN

272.264°

Arg. of periapsis

78.2541°

True anomaly

Unknown

Mean anomaly

281.9431°

Eccentric anomaly

Unknown

Mean motion

2.15033 °/min

Orbital period

167.42 mins

BSTAR

-0.0059383

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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.
28 mins	2025-07-01 09:00:02.846Z	244.073° WSW	2025-07-01 09:14:02.846Z	294.844° NW	22.362°	2025-07-01 09:28:02.846Z	344.659° N
24 mins	2025-07-01 15:18:02.846Z	21.406° NNE	2025-07-01 15:30:02.846Z	64.114° ENE	19.093°	2025-07-01 15:42:02.846Z	106.081° ESE
36 mins	2025-07-01 18:03:02.846Z	2.908° NNE	2025-07-01 18:20:02.846Z	66.563° ENE	44.847°	2025-07-01 18:39:02.846Z	183.776° SSW
26 mins	2025-07-01 20:51:02.846Z	347.903° N	2025-07-01 21:03:02.846Z	304.554° NW	24.546°	2025-07-01 21:17:02.846Z	253.91° W
31 mins	2025-07-02 04:31:02.846Z	129.239° SE	2025-07-02 04:46:02.846Z	68.423° E	34.607°	2025-07-02 05:02:02.846Z	5.91° NNE
36 mins	2025-07-02 07:14:02.846Z	198.75° SSW	2025-07-02 07:31:02.846Z	270.462° WNW	40.15°	2025-07-02 07:50:02.846Z	354.009° N

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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.