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THEMIS D, 30797

Orbit data source: Space-Track

THEMIS D, 30797 is a payload satellite owned by GSFC (US) in HEO that was launched on Sat, 17 Feb 2007 UTC via a DELTA 7925-10C 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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https://www.satcat.com/sats-embedded/30797?theme=dark&initialShowStats=false

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Identifier

30797, 2007-004D

Orbit

HEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Swales

Mission

Operational Civil Science

Bus & Motor

ATK-A100, Unknown motor

Mass

125 kg wet, 76 kg dry

Launch date (UTC)

2007-02-17 (19 years ago)

Launch vehicle

DELTA 7925-10C

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 6 Rod, 24.5 m

Radar Cross Section

0.720 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 THEMIS D
1 30797U 07004D   26071.58267631 -.00000203  00000-0  00000-0 0  9997
2 30797   6.7078  84.3686 8355004 216.9249  22.3658  0.87835560 40225

Epoch: 2026-03-12T13:59Z

TLE epoch observation values (Epoch: 2026-03-12T13:59:03.233Z)

Latitude

-1.57986°

Longitude

51.55518°

Altitude

23,711.138 km

Speed

4.223 km/s

True Right ascension

04h 46m 11s

True Declination

-1° 34' 39"

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

00:33:07

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

78,168.482 km

Perigee altitude

1,199.026 km

Semi-major axis

46,061.891 km

Eccentricity

0.8355

Inclination

6.7078°

RAAN

84.3686°

Arg. of periapsis

216.9249°

True anomaly

130.62487°

Mean anomaly

22.3658°

Eccentric anomaly

66.14794°

Mean motion

0.21955 °/min

Orbital period

1,639.73 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #4 in the year 2007 (2007-02-17 UTC)

DELTA 2 R/B(1), 30585 (Decayed)

THEMIS E, 30798

DELTA 2 R/B(2), 30799 (Decayed)

THEMIS A, 30580

ARTEMIS P1 (THEMIS B), 30581

ARTEMIS P2 (THEMIS C), 30582

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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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THEMIS D 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.
705 mins	2026-03-12 22:16:39.752Z	98.299° ESE	2026-03-13 04:03:39.752Z	181.374° SSW	38.172°	2026-03-13 10:01:39.752Z	264.148° W

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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 THEMIS D, 30797 on other resources

View THEMIS D, 30797 on NASA - NSSDCA Website

View THEMIS D, 30797 on Heavens-Above

View THEMIS D, 30797 on Keep Track

View THEMIS D, 30797 on Celestrak

View THEMIS D, 30797 on Gunter's Space Page

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

THEMIS D, 30797

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-03-12T13:59:03.233Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #4 in the year 2007 (2007-02-17 UTC)

THEMIS D Visibility forecast

Co-orbital & Co-planar RSOs

Check out THEMIS D, 30797 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago