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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: 6 hours ago

TLE from 6 hours ago

0 HERMES 4
1 63833U 25052BP  26193.13668425  .00008592  00000-0  28969-3 0  9994
2 63833  97.3850  86.8352 0005064 106.6829 253.4968 15.30956183 73767

Epoch: 2026-07-12T03:16Z

TLE epoch observation values (Epoch: 2026-07-12T03:16:49.519Z)

Latitude

-0.00004°

Longitude

107.589°

Altitude

477.051 km

Speed

7.627 km/s

True Right ascension

05h 47m 20s

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

21:56:54

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

473.376 km

Perigee altitude

466.441 km

Semi-major axis

6,848.046 km

Eccentricity

0.00051

Inclination

97.385°

RAAN

86.8352°

Arg. of periapsis

106.6829°

True anomaly

253.44117°

Mean anomaly

253.4968°

Eccentric anomaly

253.46898°

Mean motion

3.82995 °/min

Orbital period

94 mins

BSTAR

0.00028969

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

M-SEL, 63231

HYDRA-W, 63490 (Decayed)

ETIHAD-SAT, 63226

OBJECT AH, 63241

FIRESAT0, 63256

LEMUR 2 THEFALCONER, 63264

TOMORROW-S6, 63225

SPACEEYE-T1, 63229

OTP-2, 63235

IOD1_STARTICAL, 63212

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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.
5 mins	2026-07-12 17:32:11.002Z	210.431° SW	2026-07-12 17:34:11.002Z	264.338° W	27.561°	2026-07-12 17:37:11.002Z	326.433° NNW
4 mins	2026-07-13 06:31:11.002Z	328.151° NNW	2026-07-13 06:33:11.002Z	276.826° WNW	22.182°	2026-07-13 06:35:11.002Z	237.696° WSW

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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: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-07-12T03:16:49.519Z)

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: 6 hours ago