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HERMES 4, 63833

Orbit data source: Space-Track

HERMES 4, 63833 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/63833?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/63833?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

63833, 2025-052BP

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 (1 year ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 14.5 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 4
1 63833U 25052BP  26174.44037103  .00013552  00000-0  46322-3 0  9995
2 63833  97.3867  68.2308 0003742 142.2638 217.8866 15.30392713 70902

Epoch: 2026-06-23T10:34Z

TLE epoch observation values (Epoch: 2026-06-23T10:34:08.056Z)

Latitude

-0.00004°

Longitude

-1.91467°

Altitude

479.769 km

Speed

7.625 km/s

True Right ascension

04h 32m 55s

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

00:49:27

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

474.154 km

Perigee altitude

469.028 km

Semi-major axis

6,849.728 km

Eccentricity

0.00037

Inclination

97.3867°

RAAN

68.2308°

Arg. of periapsis

142.2638°

True anomaly

217.86028°

Mean anomaly

217.8866°

Eccentric anomaly

217.87344°

Mean motion

3.82854 °/min

Orbital period

94.03 mins

BSTAR

0.00046322

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

LIZZIESAT-3 (LS-3), 63233

UNICORN-2P, 63981 (Decayed)

LEMUR 2 THEFALCONER, 63264

UNICORN-2Q, 63491 (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 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.
6 mins	2026-06-24 16:31:02.485Z	137.475° SSE	2026-06-24 16:34:02.485Z	67.979° E	29.886°	2026-06-24 16:37:02.485Z	6.885° NNE
5 mins	2026-06-25 05:31:02.485Z	35.308° NE	2026-06-25 05:33:02.485Z	106.263° ESE	36.045°	2026-06-25 05:36:02.485Z	173.461° 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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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 HERMES 4, 63833 on other resources

View HERMES 4, 63833 on NASA - NSSDCA Website

View HERMES 4, 63833 on Heavens-Above

View HERMES 4, 63833 on Keep Track

View HERMES 4, 63833 on Celestrak

View HERMES 4, 63833 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 4, 63833

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: 2026-06-23T10:34:08.056Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

HERMES 4 Visibility forecast

Co-orbital & Co-planar RSOs

Check out HERMES 4, 63833 on other resources

Documentation

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