Tyvak-0173? (SIRION-3?) Satellite

Tyvak-0173? (SIRION-3?)
Tyvak-0173? (SIRION-3?)
Satellite Tyvak-0173 (SIRION-3, EG 3, EG-3, EchoStar Global 3)
Spacecraft type CubeSat
Units or mass 16U
Status Operational (News on 2021-12-06 about propulsion)
Launched 2021-06-30
NORAD ID 48892
Deployer Unknown
Launcher Falcon 9 (Transporter-2)
Organization EchoStar
Institution Company
Entity Commercial
Nation US
Manufacturer AIVT by Terran Orbital

Two tiny S-band satellites to jumpstart a low-Earth-orbit constellation using spectrum gained through its acquisition of Helios Wire. 


Performed 110 km in altitude orbit raise from TLEs as reported by Jonathan McDowell.
The orbit raising required about 65 meters per second.
Jonathan McDowell reported on 2021-12-03 that new TLE out today for Echostar EG-3 (48892) shows it in a 650 x 677 km x 96.0 deg orbit - first TLE in a month, Nov 3 it was in a 644 x 666 x 97.5 deg orbit, corresponding to a 1.5 deg inclination change. It is about 200 m/s.

Sources [1] [2] [3] [4] [5] [6] [7] [8] [9]
Photo sources [1] [2]
COTS subsystems
  • PLATFORM - Tyvak
  • THRUSTER - Stellar Exploration
Subsystems sources [1]
On the same launch

Last modified: 2024-05-29

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