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SNAP-3 EDDIE, 40972

Orbit data source: Space-Track

SNAP-3 EDDIE, 40972 is a payload satellite owned by SMDC (US) in LEO that was launched on Thu, 08 Oct 2015 UTC via an ATLAS V 401 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 URL

https://www.satcat.com/sats-embedded/40972?theme=dark&initialShowStats=false

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Identifier

40972, 2015-058J

Orbit

LEO

Country

Related business

United States Army (US)

Manufacturer

Duocomm Miltec

Mission

Operational Defense Communications

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

5.3 kg wet, 4.5 kg dry

Launch date (UTC)

2015-10-08 (10 years ago)

Launch vehicle

ATLAS V 401

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 8 Pan, 0.3 m

Radar Cross Section

0.085 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 SNAP-3 EDDIE
1 40972U 15058J   25341.82055001  .00057688  00000-0  16643-2 0  9993
2 40972  64.7535  22.3700 0048044 126.7181 233.8381 15.34190610 89447

Epoch: 2025-12-07T19:41Z

TLE epoch observation values (Epoch: 2025-12-07T19:41:35.520Z)

Latitude

0.00002°

Longitude

10.14356°

Altitude

484.87 km

Speed

7.613 km/s

True Right ascension

01h 29m 28s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

09:48:51

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

494.73 km

Perigee altitude

429.006 km

Semi-major axis

6,840.005 km

Eccentricity

0.0048

Inclination

64.7535°

RAAN

22.37°

Arg. of periapsis

126.7181°

True anomaly

233.39519°

Mean anomaly

233.8381°

Eccentric anomaly

233.61649°

Mean motion

3.83671 °/min

Orbital period

93.83 mins

BSTAR

0.0016643

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Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)

ATLAS 5 CENTAUR R/B, 40978

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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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SNAP-3 EDDIE 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.
5 mins	2025-12-08 13:26:23.947Z	334.858° NNW	2025-12-08 13:28:23.947Z	3.808° NNE	40.42°	2025-12-08 13:31:23.947Z	139.935° SSE
5 mins	2025-12-09 04:42:23.947Z	225.995° WSW	2025-12-09 04:44:23.947Z	266.641° W	39.493°	2025-12-09 04:47:23.947Z	21.887° NNE

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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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Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

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

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Check out SNAP-3 EDDIE, 40972 on other resources

View SNAP-3 EDDIE, 40972 on NASA - NSSDCA Website

View SNAP-3 EDDIE, 40972 on Heavens-Above

View SNAP-3 EDDIE, 40972 on Keep Track

View SNAP-3 EDDIE, 40972 on Celestrak

View SNAP-3 EDDIE, 40972 on Gunter's Space Page

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

SNAP-3 EDDIE, 40972

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2025-12-07T19:41:35.520Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)

SNAP-3 EDDIE Visibility forecast

Co-orbital & Co-planar RSOs

Check out SNAP-3 EDDIE, 40972 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago