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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 using radio occultation. It's also used to locate sources of jamming signals.

Operated by Spire Global Inc.

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 5 Dec 2018  
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 Kevin 12 Nov 2017 43046 / 17071K 22 Mar 2022  
Lemur 2 Romacoste 12 Nov 2017 43048 / 17071M 28 Feb 2022  
Lemur 2 Lui-Poh-Chun 12 Nov 2017 43054 / 17071T 9 Mar 2022  
         
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    
         
Lemur-2-v4.7        
Lemur-2-v4.8        
         
Lemur 2 Baxter-Oliver 17 Nov 2020 46925 / 98067RV 20 Dec 2021  


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    
         
Lemur 2 Orzulak 29 Nov 2018 43731 / 18096N    
Lemur 2 Vladimir 29 Nov 2018 43746 / 18096AD    
Lemur 2 Kobyszcze 29 Nov 2018 43732 / 18096P    
Lemur 2 Duly 29 Nov 2018 43745 / 18096AC    
         
Lemur-2-RemyColton 27 Dec 2018 43884 / 18111J    
Lemur-2-Gustavo 27 Dec 2018 43885 / 18111K    
Lemur-2-ChristinaHolt 27 Dec 2018 43882 / 18111G    
Lemur-2-Zo 27 Dec 2018 43886 / 18111L    
Lemur-2-TinyKev 27 Dec 2018 43883 / 18111H    
Lemur-2-SarahBettyBoo 27 Dec 2018 43888 / 18111N    
Lemur-2-NatalieMurray 27 Dec 2018 43887 / 18111M    
Lemur-2-DaisyHarper 27 Dec 2018 43889 / 18111P    
         
Lemur-2-JohanLoran 1 Apr 2019 44084 / 19018G    
Lemur-2-Beaudacious 1 Apr 2019 44085 / 19018H    
Lemur-2-Elham 1 Apr 2019 44086 / 19018J    
Lemur-2-Victor-Andrew 1 Apr 2019 44087 / 19018K    
         
Lemur-2-Lillyjo 5 Jul 2019 44396 / 19038L    
Lemur-2-Wanli 5 Jul 2019 44402 / 19038S    
Lemur-2-Morag 5 Jul 2019 44403 / 19038T    
Lemur-2-Yndrd 5 Jul 2019 44413 / 19038AD    
Lemur-2-Dustinthewind 5 Jul 2019 44405 / 19038V    
Lemur-2-Alex-Maddy 5 Jul 2019 44407 / 19038X    
Lemur-2-Ejatta 5 Jul 2019 44409 / 19038Z    
Lemur-2-Gregrobinson 5 Jul 2019 44411 / 19038AB    
         
Lemur-2-Jpgsquared 11 Dec 2019 44855 / 19089D    
Lemur-2-Himomanddad 11 Dec 2019 44860 / 19089J    
Lemur-2-Pappy 11 Dec 2019 44861 / 19089K    
Lemur-2-Theodosia 11 Dec 2019 44863 / 19089M    
         
Lemur-2-Ethanoakes 3 Sep 2020 46298 / 20061AC    
Lemur-2-Oscarlator 3 Sep 2020 46299 / 20061AD    
Lemur-2-Schmidtfall 3 Sep 2020 46315 / 20061AV    
Lemur-2-Djuproera 3 Sep 2020 46316 / 20061AW    
Lemur-2-Squarejaws 3 Sep 2020 46317 / 20061AX    
Lemur-2-Ursa-Avion 3 Sep 2020 46318 / 20061AY    
         
Lemur-2-Slicers 28 Sep 2020 46500 / 20068Q    
Lemur-2-Daywzagoodday 28 Sep 2020 46501 / 20068R    
Lemur-2-Susurrus 28 Sep 2020 46502 / 20068S    
Lemur-2-Nichol 28 Sep 2020 46503 / 20068T    
         
Lemur-2-Ozarak 7 Nov 2020 46908 / 20081D    
Lemur-2-Jindra 7 Nov 2020 46909 / 20081E    
Lemur-2-Wallace 7 Nov 2020 46910 / 20081F    
Lemur-2-Jeremiah 7 Nov 2020 46911 / 20081G    
         
Lemur-2-Neva        
Lemur-2-NallyWacker        
Lemur-2-Ruari-Elidh        
Lemur-2-JenniferSong        
Lemur-2-Chantal        
Lemur-2-SaoirseDH5Guo        
Lemur-2-NoobNoob        
Lemur-2-Unnamed        
         
Lemur-2-Amanda-Svante 29 Apr 2021 48269 / 21034B    
Lemur-2-Special-K 29 Apr 2021 48273 / 21034F    
         
Lemur-2-Jackson 30 Jun 2021 48885 / 21059G    
Lemur-2-AnnaBanana 30 Jun 2021 48923 / 21059AW    
Lemur-2-John-Treires 30 Jun 2021 48925 / 21059AY    
Lemur-2-AC-Cubed 30 Jun 2021 48927 / 21059BA    
Lemur-2-Merima 30 Jun 2021 48929 / 21059BC    
Lemur-2-CarlSantaMari 30 Jun 2021 48959 / 21059CJ    
         
Lemur-2 Krywe / Adler 13 Jan 2022 51099 / 22003F    
         
Lemur-2 Ramonamae 13 Jan 2022 51021 / 22002AP    
Lemur-2 King-Julien 13 Jan 2022 51022 / 22002AQ    
Lemur-2 Rohovithsa / Ororasat 13 Jan 2022 51036 / 22002BE    
Lemur-2 Miriwari 13 Jan 2022 51054 / 22002BY    
Lemur-2 Djirang 13 Jan 2022 51058 / 22002CC    


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.

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

Phase 1B


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.


Phase 1C


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.


Phase II


Phase II satellites were authorised in orbits from 385 to 650 km, with orbits between 0° and 98°. 872 satellites are approved. Frequencies:
Data downlink: 8025-8400 MHz, 2020-2025 MHz, 2200-2290 MHz
Data uplink: 2025-2110 MHz
Data backup in 402-403 MHz

TT&C downlink: 401-402 MHz
TT&C uplink: 402-403 MHz, 449.75-450.25 MHz, 2025-2110 MHz

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. Will also receive Galileo signals in 1559-1591 MHz and 1164-1219 MHz to observe radio occultation.



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


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