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MMS 3, 40484

Orbit data source: Space-Track

MMS 3, 40484 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/40484?theme=dark&initialShowStats=false

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Identifier

40484, 2015-011C

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 hours ago

TLE from 2 hours ago

0 MMS 3
1 40484U 15011C   26062.58336806 -.00002033  00000-0  00000+0 0  9991
2 40484  70.7091 350.2479 8429127 165.1676 327.3485  0.27959011  1334

Epoch: 2026-03-03T14:00Z

TLE epoch observation values (Epoch: 2026-03-03T14:00:03.000Z)

Latitude

21.32267°

Longitude

-14.14502°

Altitude

78,596.476 km

Speed

2.312 km/s

True Right ascension

23h 48m 54s

True Declination

21° 18' 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

20:03:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

175,684.755 km

Perigee altitude

9,140.649 km

Semi-major axis

98,790.839 km

Eccentricity

0.84291

Inclination

70.7091°

RAAN

350.2479°

Arg. of periapsis

165.1676°

True anomaly

218.21298°

Mean anomaly

327.3485°

Eccentric anomaly

279.75086°

Mean motion

0.0699 °/min

Orbital period

5,150.32 mins

BSTAR

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Computing Atmospheric mass density...

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

ATLAS 5 CENTAUR R/B, 40486 (Decayed)

MMS 4, 40485

MMS 2, 40483

MMS 1, 40482

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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 3 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.
283 mins	2026-03-03 16:18:03.122Z	82.861° E	2026-03-03 19:07:03.122Z	56.043° ENE	41.863°	2026-03-03 21:01:03.122Z	25.387° NE

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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 3, 40484 on other resources

View MMS 3, 40484 on NASA - NSSDCA Website

View MMS 3, 40484 on Heavens-Above

View MMS 3, 40484 on Keep Track

View MMS 3, 40484 on Celestrak

View MMS 3, 40484 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 3, 40484

Orbit data source: Space-Track

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

TLE from 2 hours ago

TLE epoch observation values (Epoch: 2026-03-03T14:00:03.000Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

MMS 3 Visibility forecast

Co-orbital & Co-planar RSOs

Check out MMS 3, 40484 on other resources

Documentation

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