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OPS 4078 (DMSP 4B F2), 3510

Orbit data source: Space-Track

OPS 4078 (DMSP 4B F2), 3510 is a payload satellite owned by SAMSO (US) in SSO that was launched on Wed, 23 Oct 1968 UTC via a THOR BURNER 2 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/3510?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/3510?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

3510, 1968-092A

Orbit

SSO

Last TLE update

11 hours ago

Origin

USAF Space and Missile Systems Organization (US)

Manufacturer

RCA/East Windsor

Mission

Non-operational Defense Weather

Bus & Motor

DMSP BLOCK 4B, Unknown motor

Mass

79 kg wet, 79 kg dry

Launch date (UTC)

1968-10-23 (57 years ago)

Launch vehicle

THOR BURNER 2

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cone, 0.8 m

Radar Cross Section

0.985 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 11 hours ago

0 OPS 4078 (DMSP 4B F2)
1 03510U 68092A   25191.61754546  .00000061  00000-0  41576-4 0  9994
2 03510  98.5333 316.1404 0028700 248.5796 111.2323 14.28094648948492

Epoch: 2025-07-10T14:49Z

TLE epoch observation values (Epoch: 2025-07-10T14:49:15.927Z)

Latitude

-0.00006°

Longitude

165.0428°

Altitude

808.549 km

Speed

7.445 km/s

True Right ascension

21h 04m 33s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

-67.99347°

Longitude

-36.17032°

Altitude

803.12 km

Speed

7.462 km/s

Apparent Right ascension

04h 06m 03s

Apparent Declination

-60° 43' 33"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

14:21:04

Azimuth

209.155° SW

Elevation

-63.65°

Doppler factor

Orbital elements

Apogee altitude

815.834 km

Perigee altitude

774.658 km

Semi-major axis

7,173.383 km

Eccentricity

0.00287

Inclination

98.5333°

RAAN

316.1404°

Arg. of periapsis

248.5796°

True anomaly

Unknown

Mean anomaly

111.2323°

Eccentric anomaly

Unknown

Mean motion

3.57238 °/min

Orbital period

100.77 mins

BSTAR

0.000041576

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Other satellites on launch #92 in the year 1968 (1968-10-23 UTC)

THOR BURNER 2 R/B, 3522

OPS 4078 (DMSP 4B F2) 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.
9 mins	2025-07-11 07:45:34.542Z	140.773° SSE	2025-07-11 07:49:34.542Z	85.87° E	35.7°	2025-07-11 07:54:34.542Z	0.545° NNE
6 mins	2025-07-11 09:27:34.542Z	234.21° WSW	2025-07-11 09:29:34.542Z	262.313° W	19.709°	2025-07-11 09:33:34.542Z	313.291° NW
5 mins	2025-07-11 20:02:34.542Z	69.125° E	2025-07-11 20:04:34.542Z	97.257° ESE	17.373°	2025-07-11 20:07:34.542Z	133.592° SE
8 mins	2025-07-11 21:40:34.542Z	357.8° N	2025-07-11 21:44:34.542Z	271.351° WNW	37.937°	2025-07-11 21:48:34.542Z	215.122° SW

Authenticating...

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Check out OPS 4078 (DMSP 4B F2), 3510 on other resources

View OPS 4078 (DMSP 4B F2), 3510 on NASA - NSSDCA Website

View OPS 4078 (DMSP 4B F2), 3510 on Heavens-Above

View OPS 4078 (DMSP 4B F2), 3510 on Keep Track

View OPS 4078 (DMSP 4B F2), 3510 on Celestrak

View OPS 4078 (DMSP 4B F2), 3510 on Gunter's Space Page

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