Image from TERRA
Sat, 10 Nov 2018 11:10 EST

Within a day, the fire had consumed 70,000 acres of land.

Image from TERRA
Tue, 30 Oct 2018 13:30 EDT

This summer and early fall, beachgoers and residents along Florida’s central Gulf Coast endured an unpleasant and, at worst, debilitating aquatic annoyance: a dangerous red tide caused by the harmful algae Karenia brevis.

Image from TERRA
Wed, 10 Oct 2018 13:03 EDT

More than 400 miles above Earth, a satellite the size of a school bus is earning its frequent flyer miles. On Oct. 6, NASA’s Terra completed 100,000 orbits around Earth. Terra, which launched Dec. 18, 1999, is projected to continue operation into the 2020s.

About Terra

Approximately the size of a small school bus, the Terra satellite carries five instruments that take coincident measurements of the Earth system:

Terra is in a circular sun-synchronous polar orbit that takes it from north to south (on the daylight side of the Earth) every 99 minutes.

PostPropLeakW_smallSpacecraft Quick Facts:

  • Launch Date: December 18,1999
  • Size: the spacecraft bus is 6.8 m long and 3.5 m across.
  • Weight: 5,190 kg (11,442 lbs.) at launch.

KSC-99PP-1412_web

 

Orbit Quick Facts: 

  • Altitude: 705 kilometers (438 miles) above Earth’s surface
  • Inclination: 98.5 degrees
  • Period: 99 minutes (16 orbits per day)
  • Equatorial crossing: 10:30 a.m., descending node

Terra Status:

  • Operating instruments: ASTER, CERES, MODIS, MISR, and MOPITT are operating well.  ASTER Short Wave Infrared (SWIR) data is unavailable.
  • Current life expectancy: Terra  has far exceeded its design life and has a strong chance of operating successfully into the early 2020s.
  • Current systems issues: None.
  • Processed Terra data are available through several NASA data centers.

Greater detail on the status of the Terra spacecraft, instruments, and mission are presented Terra Status File: