Official name KEPLER-2 (TARS)
Alternative name Kepler-3
Cospar ID 2020-061AZ
Norad ID 46319
Launch date 2020-09-03
Launch site FRGUI
Launch vehicle Vega
Country/Organization Canada
Type application Communication M2M/IoT
Operator Kepler Communications, Catapult
RCS size MEDIUM
Decay date ON ORBIT
Period (min) 93.67
Inclination (deg) 97.35
Perigee (km) 453
Apogee (km) 455
Eccentricity 0.00220264317180617
Mean motion (revs. per day) 15.3731183943632
Semi-Major axis (km) 6832.135
Raan (deg) 201.371
Arg of perigee (deg) 197.7326
Shape Box + 4 Pan
Mass (kg) 15
Height (m) 0.3
Width (m) 0.2
Depth (m) 0.2
Contractors ÅAC Microtec
Equipment SDR, narrowband communications payload
Propulsion None
Configuration CubeSat (3U)
Power Solar cells, batteries

Kepler Communications, a small satellite startup, is designing a constellation of CubeSats for Internet-of-Things (IoT), machine-to-machine (M2M) and inter-satellite communications services.

Kepler?s goals are to provide a vastly improved IoT backhaul for customers on the ground, as well as real time access to satellites in the same orbit. In an interview with Via Satellite, Co-Founder and CTO Wen Cheng Chong said the fresh capital has given the company the means to start building out its system.

After the first initial prototypes, KIPP and CASE, Kepler added a third improved demonstration satelite called TARS (in honor of a fictional robot from the movie 'Interstellar'), which will be built by ÅAC Microtec. Besides the store and forward payload, TARS will also include a narrowband communications payload to carry small amounts of data from numerous Internet-of-Things devices.

Additionally, the TARS satellite provides also space for Catapult's IOD-5 in-orbit demonstration mission.

The constellation would then expand to an initial size of 10 to 15 satellites in a polar orbit. With this fleet, the company would provide low data rate communications for various user terminals to the satellite, and a very large pipe to the gateway when over ground stations. For a late phase, the constellation might be increased to 120 satellites.

The 6U CubeSat features deployable solar arrays, software defined radios (SDR), a narrowband communications payload and high gain antennas.

Satellite COSPAR Date LS Launch Vehicle Remarks
KEPLER-2 (TARS) 2020-061AZ 2020-09-03 FRGUI Vega with Athena, ION-SCV 1, ESAIL, UPMSat 2, NEMO-HD, ÑuSat 6, GHGSat C1, Flock-4v 1, ..., 26, Lemur-2 112, ..., 119, SpaceBEE 10, ..., 21, FSSCat A, B, NAPA 1, EG 2, OSM 1 CICERO, DIDO 3, PICASSO, SIMBA, TRISAT, AMICal-Sat, TTÜ100