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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 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 (9 months 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, Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 HERMES 4
1 63833U 25052BP  25347.23730456  .00027864  00000-0  11784-2 0  9998
2 63833  97.4087 237.7193 0004873 120.9674 239.2042 15.23166455 41570

Epoch: 2025-12-13T05:41Z

TLE epoch observation values (Epoch: 2025-12-13T05:41:43.113Z)

Latitude

-0.00007°

Longitude

70.12221°

Altitude

501.108 km

Speed

7.613 km/s

True Right ascension

15h 50m 52s

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

21:19:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

496.607 km

Perigee altitude

489.91 km

Semi-major axis

6,871.395 km

Eccentricity

0.00049

Inclination

97.4087°

RAAN

237.7193°

Arg. of periapsis

120.9674°

True anomaly

239.15625°

Mean anomaly

239.2042°

Eccentric anomaly

239.18022°

Mean motion

3.81045 °/min

Orbital period

94.48 mins

BSTAR

0.0011784

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

LEMUR 2 LIA-MARTIN, 63248

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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	2025-12-14 05:53:49.593Z	5.688° NNE	2025-12-14 05:56:49.593Z	325.314° NNW	40.669°	2025-12-14 05:59:49.593Z	204.667° SW
5 mins	2025-12-14 16:31:49.593Z	132.05° SE	2025-12-14 16:33:49.593Z	69.427° E	33.357°	2025-12-14 16:36:49.593Z	4.683° NNE

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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 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: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2025-12-13T05:41:43.113Z)

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: 17 hours ago