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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

IT

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: 13 hours ago

TLE from 13 hours ago

0 HERMES 4
1 63833U 25052BP  26260.43202478  .00008233  00000-0  26804-3 0  9992
2 63833  97.3736 153.8343 0001470 190.0658 170.0555 15.32111109 84063

Epoch: 2026-09-17T10:22Z

TLE epoch observation values (Epoch: 2026-09-17T10:22:06.940Z)

Latitude

0.00005°

Longitude

1.93602°

Altitude

473.614 km

Speed

7.629 km/s

True Right ascension

10h 15m 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

16:03:22

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

467.469 km

Perigee altitude

465.457 km

Semi-major axis

6,844.6 km

Eccentricity

0.00015

Inclination

97.3736°

RAAN

153.8343°

Arg. of periapsis

190.0658°

True anomaly

170.05841°

Mean anomaly

170.0555°

Eccentric anomaly

170.05695°

Mean motion

3.83284 °/min

Orbital period

93.93 mins

BSTAR

0.00026804

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

DROID.002, 63223

ORBASTRO-TR5, 63236

LEMUR 2 EMERSONROSE, 63261

OBJECT U, 63228

UVSQ-SAT NG, 63251

LEMUR 2 LIA-MARTIN, 63248

LEMUR 2 BALTO, 63395

SPACEEYE-T1, 63229

HADES-ICM, 63492 (Decayed)

HERMES-1, 63242

ICEYE-X48, 63253

ICEYE-X50, 63255

OBJECT AE, 63238

OBJECT Y, 63232

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

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	2026-09-18 05:44:14.627Z	17.829° NNE	2026-09-18 05:47:14.627Z	98.392° ESE	69.359°	2026-09-18 05:50:14.627Z	184.37° SSW

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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.

Documentation

Go to standalone docs website

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