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Program: Lemur


S2946

US private remote-sensing program to operate a constellation of micro-satellites (3U cubesats) to provide weather data

Operated by Spire Global (was NanoSatisfy), a US company.

Lemur launched from ISS


Name Release date Designation Decay date  
Lemur 2-5 Theresacondor 18 May 2016 41485 / 98067JF 30 Mar 2017  
Lemur 2-6 Kane 18 May 2016 41488 / 98067JJ 5 Apr 2017  
Lemur 2-7 Nick-Allain 18 May 2016 41489 / 98067JK 7 Apr 2017  
Lemur 2-8 Jeff 18 May 2016 41490 / 98067JL 24 Mar 2017  
Lemur 2-9 Cubecheese 21 Jun 2016 41598 / 16019E    
Lemur 2-10 Bridgeman 21 Jun 2016 41595 / 16019B 25 Jun 2017  
Lemur 2-11 Nate 21 Jun 2016 41597 / 16019D 6 Mar 2017  
Lemur 2-12 DrMuzz 21 Jun 2016 41596 / 16019C 8 Mar 2017  
Lemur 2-13 Beccadewey failed      
Lemur 2-14 Sokolsky 25 Nov 2016 41871 / 16062C    
Lemur 2-15 Xiaoqing 25 Nov 2016 41872 / 16062D    
Lemur 2-16 Anubhavthakur 26 Nov 2016 41873 / 16062E    
Lemur 2-17 Wingo 26 Nov 2016 41874 / 16062F    
Lemur 2-18 Trutna 6 Mar 2017 42067 / 98067LC 15 Apr 2018  
Lemur 2-19 Trutnahd 6 Mar 2017 42069 / 98067LE 13 Nov 2018  
Lemur 2-20 Austintacious 6 Mar 2017 42068 / 98067LD 4 Oct 2018  
Lemur 2-21 Redfren-Goes 6 Mar 2017 42059 / 98067KH    
Lemur 2-22 Jobanputra 15 Feb 2017 41997 / 17008BB    
Lemur 2-23 Spire-Minions 15 Feb 2017 41994 / 17008AY    
Lemur 2-24 Satchmo 15 Feb 2017 41991 / 17008AV    
Lemur 2-25 Rdeaton 15 Feb 2017 41995 / 17008AZ    
Lemur 2-26 Smita-Sharad 15 Feb 2017 41993 / 17008AX    
Lemur 2-27 Mia-Grace 15 Feb 2017 41992 / 17008AW    
Lemur 2-28 NoguesCorreig 15 Feb 2017 41996 / 17008BA    
Lemur 2-29 Tachikoma 15 Feb 2017 41998 / 17008BC    
Lemur 2-30 JennyBarna 8 Jun 2017 42752 / 17019B    
Lemur 2-31 Angela 8 Jun 2017 42753 / 17019C    
Lemur 2-32 SpiroVision 8 Jun 2017 42754 / 17019D    
Lemur 2-33 RobMoore 8 Jun 2017 42755 / 17019E    
Lemur 2-34 ShainaJohl 23 Jun 2017 42771 / 17036G    
Lemur 2-35 XueniTerence 23 Jun 2017 42772 / 17036H    
Lemur 2-36 LucyBryce 23 Jun 2017 42773 / 17036J    
Lemur 2-37 KungFoo 23 Jun 2017 42774 / 17036K    
Lemur 2-38 McPeake 23 Jun 2017 42782 / 17036T    
Lemur 2-39 Sam-Amelia 23 Jun 2017 42781 / 17036S    
Lemur 2-40 Lisasaurus 23 Jun 2017 42780 / 17036R    
Lemur 2-41 Lynsey-Symo 23 Jun 2017 42779 / 17036Q    
         
Lemur 2 TomHenderson 16 Jul 2018 43556 / 18046C    
Lemur 2 Yuasa 16 Jul 2018 43557 / 18046D    
Lemur 2 Alexander 16 Jul 2018 43558 / 18046E    
Lemur 2 Vu 16 Jul 2018 43559 / 18046F    


Other Lemur 2 launches


Lemur 2 Marshal 21 Jan 2018 43165 / 18010C    
Lemur 2 Tallhamn-ATC 21 Jan 2018 43167 / 18010E    
Lemur 2 Jin-Luen 1 Feb 2018 43182 / 18014C    
Lemur 2 Uramchansol 1 Feb 2018 43183 / 18014D    
Lemur 2 Adi 1 Feb 2018 43184 / 18014E    
Lemur 2 Thenickmolo 1 Feb 2018 43185 / 18014F    
         
Lemur 2 Chanusiak 11 Nov 2018 43697 / 18088H    
Lemur 2 Zupanski 11 Nov 2018 43695 / 18088F    




Ardusat 1 and Ardusat X were launched from ISS on 19 November 2013, 1U, 1 kg cubesats to fly Arduino-based processors from multiple sensors such as a magnetometer, a gyroscope, an accelerometer, temperature sensors, luminosity sensors, geiger counters, an optical spectrometer and a camera (1.3 MP). Were crowdfunded under Nanosatisfy LLc name. Decayed in April 2014.

Ardusat 2 was launched in January 2014.

Changed name for Spire Global Inc in July 2014 after raising $25 million.

In 2016, the company requested to launch and operating authority for 175 technically identical non-geostationary satellites, operating at orbital altitudes from 400 to 720 km and inclinations ranging from equatorial to polar sun-synchronous (98 degrees) to provide maritime monitoring, meteorological monitoring, and earth imaging services.

Spire would like to deploy a total of up to 900 technically identical satellites over a period of 15 years.

Frequencies requested:
downlink: 8025-8400 MHz, 2020-2025 MHz (backup)
uplink: 2025-2110 MHz, 402-403 MHz (backup)

Phase II satellites would also transmit a health beacon signal in the 402-403 MHz frequency band plus 2200-2290 MHz downlink. TT&C should be on 402-403 MHz (uplink) and 449.75-450.25 MHz downlink

In addition, Spire proposes to receive AIS signals in the 161.9625-161.9875 MHz and 162.0125-162.0375 MHz frequency bands, and GPS signals centered at 1575.42 MHz and 1227.60 MHz.

In March 2016, the build and launch from ISS of 9 satellites was granted, operating only in 2020-2025 MHz downlink, 402-403 MHz uplink, and to received AIS signals.

In June 2016, a further 20 satellites were authorized in orbits between 400 and 650 km.

In Oct 2016 a further 28 satellites were authorized

For Phase 1B satellites, downlink: 2020-2025 MHz (primary), 2200-2290 MHz (primary), 401-402 MHz (backup), and 402-403 MHz (backup).
TT&C: 399.9-400.05 MHz (Earth-to-space; primary); 401-402 MHz (space-to-Earth; primary); and 402-403 MHz (space-to-Earth & Earth-to-space; primary).
Should also receive Automatic Identification System (AIS) signals the 156.7625-156.7875 MHz (AIS 3), 156.8125-156.8375 MHz (AIS 4), 161.9625-161.9875 MHz (AIS 1), and 162.0125-162.0375 MHz (AIS 2) frequency bands, and receive Application Specific Messages (ASM) signals in the 161.9375-161.9625 MHz (ASM 1) and 161.9875-162.0125 MHz (ASM 2) frequency bands.

For Phase 1C satellites, the same frequencies as Phase 1B are used plus 449.75-450.25 MHz frequency band uplink (primary) for TT&C, as well as to receive Automatic Dependent Surveillance-Broadcast (ADS-B) signals in the 1087.7-1092.3 MHz frequency band.

Vega will be used to launch Lemur2 satellites from 2019 on. These are cubesat 5kg, in 500 km orbit, lifetime 2 to 3 years


External resources


https://spire.com/


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