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TIMED

active
Earth ObservationLEOCOSPAR 2001-055BLaunched 12/7/2001
Admin Edit
Mission & Launch
Launch Mission
Jason/TIMED
Launch Vehicle
Delta 7920-10
Launch Date
12/7/2001
Orbit & Mass
Orbit Class
LEO
Altitude
627 km
Inclination
74.08 deg
Dry Mass
587 kg
Total Mass
587 kg
Payload Classification
Mission Type
Earth Observation
Payload Category
EOSCI/SCI
Payload Class
C
Organizations
Operator
NASA Goddard Space Flight Center
Manufacturer
Johns Hopkins Applied Physics Lab
Registry
COSPAR ID
2001-055B
UN Registration
ST/SG/SER.E/412
Track
Mentions
11
All verified mentions of this spacecraft in source documents.
0.0-5.0
Actions

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Trial runs at the new test island are expected to begin around February 5 ahead of a planned first maritime launch and recovery attempt of a commercial liquid‑fueled rocket timed near the Chinese New Year holiday.

PlanCapabilityValue 4.0Jan 26, 2026China prepares offshore test base for reusable liquid rocket launches

Rocket Lab’s hiring surge is timed to support final integration and testing of the first Neutron vehicle.

CapabilityGrowthPlanValue 4.0Jan 22, 2026Rocket Lab Hiring Trends for January 2026 Signal Acceleration in Neutron Production and Space Systems

Chinese Academy of Sciences researchers kept DRO-A and DRO-B attached after the anomalous deployment and alternately used each craft’s engines to perform precisely timed orbital maneuvers to conserve and balance fuel.

CapabilityGeneralValue 4.2Apr 21, 2025Moon Monday #222: How China navigated failure to nail down lunar navigation success

A potential collision between TIMED and Cosmos 2221 could have generated between 2,500 and 7,500 fragments.

GeneralCapabilityValue 2.0Apr 22, 2024NASA’s strategy for space sustainability

NASA gave the all-clear in the morning after the close approach, confirming TIMED did not collide with Cosmos 2221.

GeneralValue 3.0Apr 22, 2024NASA’s strategy for space sustainability

NASA’s Thermosphere Ionosphere Mesosphere Energetics and Dynamics Mission (TIMED) spacecraft passed close to the defunct Russian satellite, Cosmos 2221, on February 28.

GeneralValue 3.0Apr 22, 2024NASA’s strategy for space sustainability

NASA warned that a collision between TIMED and Cosmos 2221 could result in significant debris generation.

GeneralValue 4.0Apr 22, 2024NASA’s strategy for space sustainability

LeoLabs estimated that TIMED and Cosmos 2221 passed within 20 meters of each other, with a collision probability as high as 8%.

GeneralValue 4.6Apr 22, 2024NASA’s strategy for space sustainability

NASA's TIMED spacecraft narrowly avoided a collision with the defunct Russian satellite Cosmos 2221 on February 28, passing less than 10 meters apart.

CapabilityGeneralValue 4.2Apr 9, 2024NASA rolls out new space sustainability strategy

Chang’e-4 tested communications and refined its orbit while in lunar orbit prior to a landing timed to follow sunrise over the target site to allow the mainly solar-powered craft to begin operations immediately.

PlanCapabilityValue 4.0Jan 3, 2019Chang’e-4 returns first images from lunar farside following historic landing