BackForward Satellite: Lemur-2 

Satellite details
Acronym Lemur-2
Full name Low Earth Multi-Use Receiver - 2
WIGOS Station Identifier 0-20009-0-269
Satellite Description
  • Constellation of nano-satellites (3U CubeSat), designed for maintaining up to 175 flight units.
  • Orbit heights ranging from 400 to 600 km, and various orbit inclinations, depending on the launch of opportunity.
  • Main missions: radio occultation sounding and ship tracking.
  • A subset of the satellites are equipped for GNSS-R observations
  • Three satellites are equipped with Polarimetric Radio Occultation (PRO) sensors to detect and characterize precipitation
  • Substantial contribution to Space weather.
Mass at launch 4.6 kg Dry mass
Power
Data access link no link provided
Data access information
  • Data commercially available from Spire Global Inc., San Francisco, CA, USA.
Orbit Sunsynchronous orbit Altitude 550 km

 

Space agency SPIRE
Status Operational
Details on Status
(as available)
  • 119 flight units launched as of 03 September 2020.
  • 123 flight units launched as of 28 September 2020.
  • 125 flight units launched as of 03 October 2020.
  • 129 flight units launched as of 07 November 2020.
  • 137 flight units launched as of 24 January 2021.
  • 139 flight units launched as of 29 April 2021.
  • 145 flight units launched as of 30 June 2021.
  • 149 flight units launched as of 13 Jan 2022.
  • 156 flight units launched as of 25 May 2022.
  • 162 flight units launched as of 3 Jan 2023.
  • 164 flight units launched as of 15 April 2023.
  • 168 flight units launched as of 12 June 2023.
  • 170 flight units launched as of 18 July 2023.
  • Lemur-2 191,192 launched 16 August 2024.
  • Lemur-2 7 units launched 15 March 2025
  • Lemur-2 1 unit launched on 2 Nov 2025
  • Lemur-2 11 units launched on 28 Nov 2025
  • Lemur-2 8 units launched on 11 Jan 2026
  • Lemur-2 5 units launched on 7 July 2026
Launch 28 Sep 2015 EOL ≥2040
Last update: 2026-09-14
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on Lemur-2

Acronym Full name
STRATOS STRATOS
Show instrument status and calibration
Satellite frequencies for Earth Observation, data transfer and platform communications and control
Earth observation MW frequencies
Service Sensing mode Frequency (GHz) Bandwidth (MHz) Polarisation Comments
GPS S-S 1.2 GHz - 1.6 GHz - RHCP&LHCP STRATOS Payload