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MMS 4, 40485

Orbit data source: Space-Track

MMS 4, 40485 is a payload satellite owned by GSFC (US) in HEO that was launched on Fri, 13 Mar 2015 UTC via an ATLAS V 421 launch vehicle from the Air Force Eastern Test Range (AFETR). 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 URL

https://www.satcat.com/sats-embedded/40485?theme=dark&initialShowStats=false

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Identifier

40485, 2015-011D

Orbit

HEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

GSFC

Mission

Operational Civil Science

Bus & Motor

MMS-SMART, GSFC

Mass

1,360 kg wet, 1,000 kg dry

Launch date (UTC)

2015-03-13 (11 years ago)

Launch vehicle

ATLAS V 421

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Oct Cyl + 1 Ant, 56.1 m

Radar Cross Section

24.177 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 MMS 4
1 40485U 15011D   26171.50003471 -.00000547  00000-0  00000+0 0  9992
2 40485  72.1513 348.7612 8320747 167.4717 276.5466  0.28305080  1392

Epoch: 2026-06-20T12:00Z

TLE epoch observation values (Epoch: 2026-06-20T12:00:02.998Z)

Latitude

5.86465°

Longitude

-97.8311°

Altitude

135,222.912 km

Speed

1.25 km/s

True Right ascension

23h 23m 34s

True Declination

5° 51' 46"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

21:36:33

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

173,135.799 km

Perigee altitude

10,075.849 km

Semi-major axis

97,983.961 km

Eccentricity

0.83207

Inclination

72.1513°

RAAN

348.7612°

Arg. of periapsis

167.4717°

True anomaly

198.55532°

Mean anomaly

276.5466°

Eccentric anomaly

236.70001°

Mean motion

0.07076 °/min

Orbital period

5,087.35 mins

BSTAR

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Other satellites on launch #11 in the year 2015 (2015-03-13 UTC)

MMS 2, 40483

ATLAS 5 CENTAUR R/B, 40486 (Decayed)

MMS 1, 40482

MMS 3, 40484

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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MMS 4 Visibility forecast

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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.
287 mins	2026-06-22 10:34:31.195Z	163.19° S	2026-06-22 11:58:31.195Z	184.307° SSW	23.719°	2026-06-22 15:21:31.195Z	231.352° WSW
180 mins	2026-06-23 07:34:31.195Z	112.096° ESE	2026-06-23 10:34:31.195Z	151.429° SSE	31.699°	2026-06-23 10:34:31.195Z	151.429° SSE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out MMS 4, 40485 on other resources

View MMS 4, 40485 on NASA - NSSDCA Website

View MMS 4, 40485 on Heavens-Above

View MMS 4, 40485 on Keep Track

View MMS 4, 40485 on Celestrak

View MMS 4, 40485 on Gunter's Space Page

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

MMS 4, 40485

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T12:00:02.998Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #11 in the year 2015 (2015-03-13 UTC)

MMS 4 Visibility forecast

Co-orbital & Co-planar RSOs

Check out MMS 4, 40485 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago