HERMES Pathfinder H3

LIVE
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Link to this page

https://orbinauts.com/satellites/63835

  • Space telescope
  • HERMES-3
  • NORAD 63835
  • 2025-052BR
  • Low Earth orbit

Current orbit

Where HERMES Pathfinder H3 is on the world map, with the orbit it is flying
View on live map

Orbit began over the Pacific Ocean

Orbit ends over the Pacific Ocean

In the Earth’s shadow since

Back in sunlight

Past trackNext orbits

In view from you

Nobody watches HERMES Pathfinder H3 go over, but a receiver still asks whether it is above the horizon. Say where you are and this card answers.

Your position is rounded to about a kilometre and sent only to the Orbinauts API, to find the pass.

No brightness has been published for HERMES Pathfinder H3, so it is not a naked-eye satellite and no city page carries pass times for it. Nothing here estimates one.

Seeing it

There is nothing to go outside for. It is far too faint for the naked eye, and catching it would take a telescope driven to follow a point crossing the sky in minutes. What is worth looking at is what it sends back.

Timeline

  1. Launch

    Launched, on the day GCAT records. Source

Summary

Over Russia LIVE

Where is HERMES Pathfinder H3?

At 4:41:31 PM UTC HERMES Pathfinder H3 was over Russia (67.6° N, 108.4° E), 462 km up, moving at 7.64 km/s and in the Earth’s shadow.

What is HERMES Pathfinder H3?

A space telescope in low Earth orbit, in space since Mar 15, 2025.

Can I see HERMES Pathfinder H3?

No, not with the naked eye: no brightness has been published for HERMES Pathfinder H3, and nothing here estimates one; what people use is what it sees, which its operator publishes.

General

Operator
Italian Space Agency
State
Italian Republic
Built by
Polytechnic University of Milan
What it is
Space telescope
Launched
Mass
5 kg
Operating
Yes
Orbit class
Low Earth orbit

From GCAT, Jonathan McDowell’s general catalogue, licensed CC BY 4.0: the operator, the state, the manufacturer, what it is for, the launch day, the mass, and whether it is operating. The orbit class is read from its current elements.

Latest orbital data

Position received
4:41 PM UTC
Station time (UTC)
4:41 PM UTC
Latitude / longitude
67.6° N, 108.4° E
Altitude
462 km
Speed
7.64 km/s (27,508 km/h)
Course
south
Light
In the Earth’s shadow until 5:12 PM UTC
Inclination
97.4°
Orbital period
93.6 minutes
Orbits per day
15.39
This orbit
442 to 450 km
In shadow
36 minutes of each orbit
In view from
Within 1,480 km of the point below it
Elements epoch
Nov 7, 2026, 11:02 PM, 17 hours old
Source
Position from Space-Track orbital elements of Nov 7, 2026, 11:02 PM, 17 hours old.

No operator publishes an ephemeris for HERMES Pathfinder H3, so every position here comes from its orbital elements.

In orbit

Close approaches
No close approach to HERMES Pathfinder H3 has been reported publicly in the past thirty days.

From Space-Track’s public conjunction messages; the latest report was issued Nov 8, 2026, 1:11 PM, 3 hours old. Only approaches serious enough to be reported publicly are listed: within three days and, for two bodies near the Earth, closer than a kilometre with a chance of a collision above 1 in 10,000, the level at which NASA moves the ISS.

See every close approach reported in orbit.

Launched with

HERMES Pathfinder H3 shares its launch, 2025-052, with 56 other bodies the catalogue lists in orbit.

BodyWhat it is
JINJUSAT-1BEarth-watching satellite
OBJECT BSatellite
OBJECT DCommunications satellite
OBJECT ECommunications satellite
OBJECT FCommunications satellite
BOTSAT-1Satellite
OBJECT HCommunications satellite
OBJECT JCommunications satellite
OBJECT KCommunications satellite
AEROCUBE 18ASatellite
OBJECT MSatellite
AEROCUBE 18BSatellite
DROID.002Satellite
TOMORROW-S6Earth-watching satellite
ETIHAD-SATEarth-watching satellite
OBJECT USatellite
SPACEEYE-T1Earth-watching satellite
ION SCV-017Satellite
M-SELSatellite
OBJECT YSatellite
LIZZIESAT-3 (LS-3)Satellite
TOMORROW-S5Earth-watching satellite
OTP-2Satellite
ORBASTRO-TR5Satellite
OBJECT ADCommunications satellite
OBJECT AECommunications satellite
OBJECT AFCommunications satellite
ALMUNTHERSatellite
OBJECT AHSatellite
HERMES-1Space telescope
HERMES-2Space telescope
PANDORESatellite
BUCCANEER MMSatellite
LEMUR 2 LEIA-PHILIPCommunications satellite
EZIE-ASatellite
LEMUR 2 LIA-MARTINCommunications satellite
EZIE-CSatellite
EZIE-BSatellite
UVSQ-SAT NGEarth-watching satellite
ARVAKER-1Satellite
ICEYE-X48Earth-watching satellite
YAM-8Satellite
ICEYE-X50Earth-watching satellite
FIRESAT0Earth-watching satellite
ICEYE-X51Earth-watching satellite
ICEYE-X46Earth-watching satellite
LEMUR 2 DELOITTE-1Communications satellite
OBJECT BCSatellite
LEMUR 2 EMERSONROSECommunications satellite
LEMUR 2 MARACHE-FRANCommunications satellite
SOAPSatellite
LEMUR 2 THEFALCONERCommunications satellite
LEMUR 2 BALTOCommunications satellite
HERMES-6Space telescope
HERMES 4Space telescope
HERMES-5Space telescope

Read from the international designators of the US catalogue: the year and the launch number every piece of one launch shares. A body that has come down is no longer listed.

Beside the others

SatelliteTypical altitudeOrbital periodMassIn space since
HERMES Pathfinder H3442 to 450 km94 minutes5 kg2025
Hubble465 to 480 km94 minutesabout 12.2 t1990
Fermi488 to 498 km94 minutesabout 4.3 t2008
Cheops679 to 694 km98 minutes280 kg2019
XMM-Newton29,443 to 91,682 km2,873 minutesabout 3.8 t1999
Chandra12,186 to 136,630 km3,809 minutesabout 4.8 t1999

Data and API

The current elements from Space-Track as an OMM object, epoch Nov 7, 2026, 11:02 PM, 17 hours old.

{
  "OBJECT_NAME": "HERMES-3",
  "OBJECT_ID": "2025-052BR",
  "EPOCH": "2026-11-07T23:02:42.351360",
  "MEAN_MOTION": 15.38959536,
  "ECCENTRICITY": 0.00054272,
  "INCLINATION": 97.3684,
  "RA_OF_ASC_NODE": 207.7909,
  "ARG_OF_PERICENTER": 6.3408,
  "MEAN_ANOMALY": 353.7905,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 63835,
  "ELEMENT_SET_NO": 999,
  "REV_AT_EPOCH": 9213,
  "BSTAR": 0.00087991157,
  "MEAN_MOTION_DOT": 0.00033972,
  "MEAN_MOTION_DDOT": 0
}