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TDO 3

retired
Technology DemonstrationMEOCOSPAR 2021-042BLaunched 5/18/2021
Admin Edit
Mission & Launch
Launch Mission
SBIRS GEO-5 Mission
Launch Vehicle
Atlas V 421 C1
Launch Date
5/18/2021
Last Contact
9/22/2022
Orbit & Mass
Orbit Class
MEO
Altitude
2,348.5 km
Inclination
26.16 deg
Dry Mass
20 kg
Total Mass
20 kg
Payload Classification
Mission Type
Technology Demonstration
Payload Category
TECH
Payload Class
D
Organizations
Operator
U.S. Space Systems Command
Manufacturer
U.S. Space Systems Command
Registry
COSPAR ID
2021-042B
UN Registration
ST/SG/SER.E/1010
Track
Mentions
6
All verified mentions of this spacecraft in source documents.
0.0-5.0
Actions

The Mission Manifest Office used strategic partners NASA Goddard Space Flight Center, NASA Wallops Flight Facility, and numerous industry participants for the TDO-3 and TDO-4 effort.

RelationshipsPlanValue 3.5May 10, 2021USAFA’s TDO-3 + TDO-4 Smallsats Ready For Integration Aboard USAF’s SBIRS GEO-5 Mission

TDO-3 and TDO-4 carry multiple U.S. Government sponsored payloads that will provide experimental data for the United States Air Force Academy.

CapabilityGeneralValue 3.8May 10, 2021USAFA’s TDO-3 + TDO-4 Smallsats Ready For Integration Aboard USAF’s SBIRS GEO-5 Mission

DNet Engineering & Integration of Denver, Colorado operated as the bus manufacturer and payload integrator for the TDO-3 and TDO-4 satellite vehicles.

CapabilityValue 4.2May 10, 2021USAFA’s TDO-3 + TDO-4 Smallsats Ready For Integration Aboard USAF’s SBIRS GEO-5 Mission

Parsons Corporation developed the interchangeable EZ Integrated Flight System that was designed to house the TDO-3 and TDO-4 satellite vehicles.

CapabilityValue 4.0May 10, 2021USAFA’s TDO-3 + TDO-4 Smallsats Ready For Integration Aboard USAF’s SBIRS GEO-5 Mission

TDO-3 and TDO-4 will deploy into an optimized geostationary transfer orbit after the first upper-stage main engine cutoff (MECO-1) and prior to the SBIRS GEO-5 satellite’s separation.

PlanCapabilityGeneralValue 4.0May 10, 2021USAFA’s TDO-3 + TDO-4 Smallsats Ready For Integration Aboard USAF’s SBIRS GEO-5 Mission

The U.S. Space Force Space and Missile Systems Center’s Launch Enterprise Mission Manifest Office delivered two fully tested and integrated multi-manifest satellite vehicles, Technology Demonstration Orbiters TDO-3 and TDO-4, to Cape Canaveral Space Force Station on 2021-05-04 for integration aboard the SBIRS GEO-5 mission.

PlanCapabilityRelationshipsValue 4.0May 10, 2021USAFA’s TDO-3 + TDO-4 Smallsats Ready For Integration Aboard USAF’s SBIRS GEO-5 Mission