Lemur-2-Monson

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Link to this page

https://orbinauts.com/satellites/42839

  • Communications satellite
  • LEMUR 2 MONSON
  • NORAD 42839
  • 2017-042Q
  • Low Earth orbit

Current orbit

Where Lemur-2-Monson is on the world map, with the orbit it is flying
View on live map

Orbit began over Angola

Orbit ends over the Atlantic Ocean

Sunlit since

Enters the Earth’s shadow

In view from you

Nobody watches Lemur-2-Monson 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 Lemur-2-Monson, 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 too faint for the naked eye. What reaches you from it reaches a dish or an antenna, not an eye.

Timeline

  1. Launch

    Launched, on the day GCAT records. Source

Summary

Over the Pacific Ocean LIVE

Where is Lemur-2-Monson?

At 5:00:24 PM UTC Lemur-2-Monson was over the Pacific Ocean (19.7° S, 167.4° W), 482 km up, moving at 7.62 km/s and in sunlight.

What is Lemur-2-Monson?

A communications satellite in low Earth orbit, in space since Jul 14, 2017.

Can I see Lemur-2-Monson?

No, not with the naked eye: no brightness has been published for Lemur-2-Monson, and nothing here estimates one; the dishes and receivers on the ground use its signals instead.

General

Operator
Spire
State
United States of America
Built by
Spire/Glasgow
What it is
Communications satellite
Launched
Mass
4 kg
Operating
No: its regular operations have ended
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
5:00 PM UTC
Station time (UTC)
5:00 PM UTC
Latitude / longitude
19.7° S, 167.4° W
Altitude
482 km
Speed
7.62 km/s (27,439 km/h)
Course
north
Light
In sunlight until 5:21 PM UTC
Inclination
97.4°
Orbital period
94 minutes
Orbits per day
15.32
This orbit
464 to 472 km
In shadow
14 minutes of each orbit
In view from
Within 1,520 km of the point below it
Elements epoch
Nov 6, 2026, 6:03 PM, 1 day old
Source
Position from Space-Track orbital elements of Nov 6, 2026, 6:03 PM, 1 day old.

No operator publishes an ephemeris for Lemur-2-Monson, so every position here comes from its orbital elements.

In orbit

Close approaches
No close approach to Lemur-2-Monson 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.

Launched with

Lemur-2-Monson shares its launch, 2017-042, with 23 other bodies the catalogue lists in orbit.

BodyWhat it is
KANOPUS-V-IKEarth-watching satellite
NORSAT 1Communications satellite
OBJECT CSatellite
NORSAT 2Communications satellite
TECHNOSATSatellite
FLYING LAPTOPSatellite
OBJECT HSatellite
OBJECT JSatellite
OBJECT KSatellite
WNISAT 1REarth-watching satellite
OBJECT MSatellite
LEMUR 2 GREENBERGCommunications satellite
LEMUR 2 ANDISCommunications satellite
LEMUR 2 FURIAUSCommunications satellite
LEMUR 2 PETERGCommunications satellite
LEMUR 2 DEMBITZCommunications satellite
OBJECT UEarth-watching satellite
NANOACESatellite
LEMUR 2 ZACHARYCommunications satellite
CORVUS BC2Earth-watching satellite
CORVUS BC1Earth-watching satellite
OBJECT ZEarth-watching satellite
OBJECT AAEarth-watching satellite

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
Lemur-2-Monson464 to 472 km94 minutes4 kg2017
BlueWalker 3443 to 453 km94 minutesabout 1.5 t2022
Hispasat 30W-635,786 to 35,786 km1,436 minutesabout 6.1 t2018
Amazonas Nexus35,786 to 35,786 km1,436 minutesabout 4.1 t2023
ARSAT-135,786 to 35,786 km1,436 minutesabout 3 t2014
Astra 1N35,786 to 35,786 km1,436 minutesabout 5.3 t2011

Data and API

The current elements from Space-Track as an OMM object, epoch Nov 6, 2026, 6:03 PM, 1 day old.

{
  "OBJECT_NAME": "LEMUR 2 MONSON",
  "OBJECT_ID": "2017-042Q",
  "EPOCH": "2026-11-06T18:03:19.752480",
  "MEAN_MOTION": 15.31653489,
  "ECCENTRICITY": 0.00054862,
  "INCLINATION": 97.41,
  "RA_OF_ASC_NODE": 130.94,
  "ARG_OF_PERICENTER": 195.1672,
  "MEAN_ANOMALY": 164.9406,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 42839,
  "ELEMENT_SET_NO": 999,
  "REV_AT_EPOCH": 50996,
  "BSTAR": 0.00061729024,
  "MEAN_MOTION_DOT": 0.00018823,
  "MEAN_MOTION_DDOT": 0
}