YODA
Two patrol smallsats
SPARTA-G70
Develop geostationary orbit services using HEMERIA’s SPARTA-G70 platform, a system optimized for these orbits.
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Platform size
460 × 600 × 340 mm
Platform mass
50 kg
Max. payload mass
15-20 kg
Max. payload volume
> 70 U
Battery energy capacity
216 Wh
Payload
Mean power
Peak power
100W
200W
SADM
up to 200W
Uplink rate
10 kbps (S-band)
Downlink rate
10 kbps (S-band) · 10 Mbps (X-Band)
Delta-V
> 250 m/s
Thrust
4 x 3.2 mN
Position accuracy
10 to 20 m
Motion accuracy
1 mm/s to 2 mm/s
Attitude pointing error
0.04° à 3o
Attitude knowledge error
0.02° à 3o
Payload data storage
28 Go (Baseline) + 32 Gb (option)
Mission lifetime
> 3 years
AOCS pointing modes
Geocentric / Sun / Target / Inertial / Polynomial / From the payload.
YODA
Two patrol smallsats
To address new threats and unfriendly actions in Space, France has a goal: to monitor Space, from Space. Against this backdrop, CNES awarded HEMERIA the YODA project (French acronym for “eyes in orbit for an agile demonstrator”), the aim of which is to design and supply a demonstrator for two reconnaissance smallsats in geostationary orbit, to protect French military satellites from suspicious, or even hostile maneuvers.
