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.

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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	10 Apr 2023
Lemur 2-15 Xiaoqing	25 Nov 2016	41872 / 16062D	8 Apr 2023
Lemur 2-16 Anubhavthakur	26 Nov 2016	41873 / 16062E
Lemur 2-17 Wingo	26 Nov 2016	41874 / 16062F	25 Apr 2023
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	25 May 2023
Lemur 2-23 Spire-Minions	15 Feb 2017	41994 / 17008AY	23 May 2023
Lemur 2-24 Satchmo	15 Feb 2017	41991 / 17008AV	11 Jul 2023
Lemur 2-25 Rdeaton	15 Feb 2017	41995 / 17008AZ
Lemur 2-26 Smita-Sharad	15 Feb 2017	41993 / 17008AX	2 Nov 2023
Lemur 2-27 Mia-Grace	15 Feb 2017	41992 / 17008AW	17 May 2023
Lemur 2-28 NoguesCorreig	15 Feb 2017	41996 / 17008BA	6 Jun 2023
Lemur 2-29 Tachikoma	15 Feb 2017	41998 / 17008BC	15 Nov 2023
Lemur 2-30 JennyBarna	8 Jun 2017	42752 / 17019B	6 Apr 2023
Lemur 2-31 Angela	8 Jun 2017	42753 / 17019C	28 Dec 2022
Lemur 2-32 SpiroVision	8 Jun 2017	42754 / 17019D	29 Apr 2023
Lemur 2-33 RobMoore	8 Jun 2017	42755 / 17019E	28 Dec 2022
Lemur 2-34 ShainaJohl	23 Jun 2017	42771 / 17036G	8 Sep 2023
Lemur 2-35 XueniTerence	23 Jun 2017	42772 / 17036H	18 Jun 2023
Lemur 2-36 LucyBryce	23 Jun 2017	42773 / 17036J	22 Sep 2023
Lemur 2-37 KungFoo	23 Jun 2017	42774 / 17036K	30 Aug 2023
Lemur 2-38 McPeake	23 Jun 2017	42782 / 17036T	6 Sep 2023
Lemur 2-39 Sam-Amelia	23 Jun 2017	42781 / 17036S
Lemur 2-40 Lisasaurus	23 Jun 2017	42780 / 17036R	5 Aug 2023
Lemur 2-41 Lynsey-Symo	23 Jun 2017	42779 / 17036Q	25 Jun 2023
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	6 Feb 2023
Lemur 2 Vu	16 Jul 2018	43559 / 18046F	13 Jan 2023
Lemur 2 Yuasa	16 Jul 2018	43560 / 18046G	18 Jan 2023
Lemur 2 Tomhenderson	16 Jul 2018	43561 / 18046H	13 Feb 2023
Lemur-2-v4.7
Lemur-2-v4.8
Lemur 2 Baxter-Oliver	17 Nov 2020	46925 / 98067RV	20 Dec 2021

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Other Lemur 2 launches

Lemur 2 Artfischer	14 Jul 2017	42881 / 17042BJ
Lemur 2 McCafferty	12 Jan 2018	43123 / 18004N	19 Apr 2023
Lemur 2 Peterwebster	12 Jan 2018	43124 / 18004P	9 May 2023
Lemur 2 Browncow	12 Jan 2018	43125 / 18004Q	19 Apr 2023
Lemur 2 Davewilson	12 Jan 2018	43126 / 18004R	5 Apr 2023
Lemur 2 Marshal	21 Jan 2018	43165 / 18010C	22 Aug 2023
Lemur 2 Tallhamn-ATC	21 Jan 2018	43167 / 18010E	9 Nov 2023
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	6 Sep 2023
Lemur 2 Zupanski	11 Nov 2018	43695 / 18088F
Lemur 2 Orzulak	29 Nov 2018	43731 / 18096N	3 Feb 2023
Lemur 2 Vladimir	29 Nov 2018	43746 / 18096AD	13 Jan 2023
Lemur 2 Kobyszcze	29 Nov 2018	43732 / 18096P	3 Feb 2023
Lemur 2 Duly	29 Nov 2018	43745 / 18096AC	20 Feb 2023
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	7 Mar 2023
Lemur-2-Beaudacious	1 Apr 2019	44085 / 19018H	30 Jun 2023
Lemur-2-Elham	1 Apr 2019	44086 / 19018J	3 May 2023
Lemur-2-Victor-Andrew	1 Apr 2019	44087 / 19018K	15 Mar 2023
Lemur-2-Lillyjo	5 Jul 2019	44396 / 19038L
Lemur-2-Wanli	5 Jul 2019	44402 / 19038S	10 Feb 2024
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	16 Feb 2024
Lemur-2-Gregrobinson	5 Jul 2019	44411 / 19038AB	7 Feb 2024
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	27 Jan 2024
Lemur-2-Schmidtfall	3 Sep 2020	46315 / 20061AV	8 Dec 2023
Lemur-2-Djuproera	3 Sep 2020	46316 / 20061AW	17 Oct 2023
Lemur-2-Squarejaws	3 Sep 2020	46317 / 20061AX	25 Nov 2023
Lemur-2-Ursa-Avion	3 Sep 2020	46318 / 20061AY	7 Dec 2023
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	24 Jan 2021	47450 / 21006AP	23 Jan 2024
Lemur-2-NallyWacker	24 Jan 2021	47457 / 21006AW	15 Dec 2023
Lemur-2-Ruari-Elidh
Lemur-2-JenniferSong	24 Jan 2021	47525 / 21006DR	30 Dec 2023
Lemur-2-Chantal
Lemur-2-SaoirseDH5Guo	24 Jan 2021	47453 / 21006AS	20 Dec 2023
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	10 Feb 2024
Lemur-2-AnnaBanana	30 Jun 2021	48923 / 21059AW
Lemur-2-John-Treires	30 Jun 2021	48925 / 21059AY	5 Dec 2023
Lemur-2-AC-Cubed	30 Jun 2021	48927 / 21059BA
Lemur-2-Merima	30 Jun 2021	48929 / 21059BC	19 Jan 2024
Lemur-2-CarlSantaMari	30 Jun 2021	48959 / 21059CJ	14 Aug 2023
Lemur-2 Krywe / Adler	13 Jan 2022	51099 / 22003F	26 Sep 2023
Lemur-2 Krywe	13 Jan 2022	51100 / 22003G	10 Jun 2023
Lemur-2 Ramonamae	13 Jan 2022	51021 / 22002AP
Lemur-2 King-Julien	13 Jan 2022	51022 / 22002AQ	19 Jan 2024
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
Lemur-2 Karen B	25 May 2022	52736 / 22057E	2 Feb 2024
Lemur-2 TennysonLily	25 May 2022	52732 / 22057A
Lemur-2 Mimi1307	25 May 2022	52769 / 22057AP
Lemur-2 Vandendries	25 May 2022	52733 / 22057B
Lemur-2 Hancom 1	25 May 2022	52740 / 22057J		Also called Sejon 1, 6U cubesat
Lemur-2 Disclaimer	3 Jan 2023	55014 / 23001F
Lemur-2 Emmaculate	3 Jan 2023	55037 / 23001AE
Lemur-2 FuenteTaja-01	3 Jan 2023	55088 / 23001CH
Lemur-2 MMolo	3 Jan 2023	55038 / 23001AF
Lemur-2 PhilAri	3 Jan 2023	55013 / 23001E
Lemur-2 SteveAlbers	3 Jan 2023	55017 / 23001J
Lemur-2 SpaceGus	15 Apr 2023	56187 / 23054K
Lemur-2 OnReflection	15 Apr 2023	56182 / 23054E
Lemur-2 Romeo-n-Leo	15 Apr 2023	56206 / 23054AE
Lemur-2 Aadam-Aliyah	20 Jun 2023	56977 / 23084AX
Lemur-2 Embrionovis	20 Jun 2023	56970 / 23084AQ
Lemur-2 Naziyah	20 Jun 2023	56974 / 23084AU
Lemur-2 Mano	18 Jul 2023	57390 / 23100E
Lemur-2 Deverill-M-T	18 Jul 2023	57391 / 23100F
Lemur-2 Bass	11 Nov 2023	58259 / 23174D		6U
Lemur-2 Dilightful	11 Nov 2023	58260 / 23174E		6U
Lemur-2 Good-Vibes	11 Nov 2023	58263 / 23174H		6U
Lemur-2 Sanita-Vetra	11 Nov 2023	58267 / 23174M		6U
Lemur-2 Marapamasm	11 Nov 2023	58332 / 23174CE
Lemur-2 The-Cleaner	11 Nov 2023	58333 / 23174CF
Lemur-2 Mango2a	11 Nov 2023	58335 / 23174CH
Lemur-2 Jk0903em1407	11 Nov 2023	58336 / 23174CJ
Lemur-2 Mango2b	11 Nov 2023	58337 / 23174CK
Lemur-2 Mjr092620	11 Nov 2023	58340 / 23174CN
Lemur-2 Nimbus2000	31 Jan 2024	58899 / 24022A		16U Skylark
Lemur-2 Valhalla	31 Jan 2024	58900 / 24022B		16U Skylark
Lemur-2 Oba-ni-Jesu	31 Jan 2024	58902 / 24022D		16U Skylark
Lemur-2 Cael	31 Jan 2024	58903 / 24022E		16U Skylark

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

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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.

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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.

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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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