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HERMES-3, 63835

Orbit data source: Space-Track

HERMES-3, 63835 is a payload satellite owned by ASI (IT) in SSO that was launched on Sat, 15 Mar 2025 UTC via an FALCON 9 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/63835?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/63835?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

63835, 2025-052BR

Orbit

SSO

Country

Related business

Italian Space Agency (IT)

Manufacturer

MILANP/INAFI

Mission

Operational Civil Astronomy

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

5 kg wet, 5 kg dry

Launch date (UTC)

2025-03-15 (2 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.2 m

Radar Cross Section

0.035 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 HERMES-3
1 63835U 25052BR  26259.51517957  .00021229  00000-0  58993-3 0  9996
2 63835  97.3709 155.1426 0006853 144.0379 216.1328 15.36869219 84078

Epoch: 2026-09-16T12:21Z

TLE epoch observation values (Epoch: 2026-09-16T12:21:51.514Z)

Latitude

-0.00002°

Longitude

-25.78771°

Altitude

462.272 km

Speed

7.633 km/s

True Right ascension

10h 20m 34s

True Declination

0° 00' 00"

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

05:14:27

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

456.997 km

Perigee altitude

447.635 km

Semi-major axis

6,830.453 km

Eccentricity

0.00069

Inclination

97.3709°

RAAN

155.1426°

Arg. of periapsis

144.0379°

True anomaly

216.08653°

Mean anomaly

216.1328°

Eccentric anomaly

216.10966°

Mean motion

3.84476 °/min

Orbital period

93.63 mins

BSTAR

0.00058993

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Other satellites on launch #52 in the year 2025 (2025-03-15 UTC)

DROID.002, 63223

LEMUR 2 EMERSONROSE, 63261

HYDRA-W, 63490 (Decayed)

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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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HERMES-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.
5 mins	2026-09-17 16:38:06.080Z	126.025° SE	2026-09-17 16:40:06.080Z	81.346° E	28.366°	2026-09-17 16:43:06.080Z	13.313° NNE
5 mins	2026-09-18 05:34:06.080Z	41.901° NE	2026-09-18 05:36:06.080Z	97.729° ESE	33.966°	2026-09-18 05:39:06.080Z	164.118° S

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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 HERMES-3, 63835 on other resources

View HERMES-3, 63835 on NASA - NSSDCA Website

View HERMES-3, 63835 on Heavens-Above

View HERMES-3, 63835 on Keep Track

View HERMES-3, 63835 on Celestrak

View HERMES-3, 63835 on Gunter's Space Page

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

HERMES-3, 63835

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-09-16T12:21:51.514Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #52 in the year 2025 (2025-03-15 UTC)

HERMES-3 Visibility forecast

Co-orbital & Co-planar RSOs

Check out HERMES-3, 63835 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago