Earth Observing-1

Earth Observing-1
Mission type	Earth observation
Operator	NASA / GSFC
COSPAR ID	2000-075A
SATCAT no.	26619
Website	eo1.gsfc.nasa.gov
Mission duration	Planned: 1 year ; Final: 16 years, 4 months, 8 days
Spacecraft properties
Manufacturer	Swales Aerospace ; Northrop Grumman
Launch mass	573 kg (1,263 lb)
Start of mission
Launch date	21 November 2000, 18:24:25 UTC
Rocket	Delta II 7320-10C, D282
Launch site	Vandenberg SLC-2W
End of mission
Disposal	Decommissioned
Deactivated	30 March 2017
Decay date	2056 (estimated)
Orbital parameters
Reference system	Geocentric
Regime	Sun-synchronous
Semi-major axis	7,058 km (4,386 mi)
Eccentricity	0.00071
Perigee altitude	690 km (430 mi)
Apogee altitude	700 km (430 mi)
Inclination	98.21 degrees
Period	98.7 minutes
Epoch	21 November 2000, 08:24:00 UTC
Instruments
	Advanced Land Imager (ALI) ; Hyperspectral Imager (Hyperion) ; Atmospheric Corrector

Earth Observing-1 (EO-1) is a decommissioned NASA Earth observation satellite created to develop and validate a number of instrument and spacecraft bus breakthrough technologies. It was intended to enable the development of future Earth imaging observatories that will have a significant increase in performance while also having reduced cost and mass. The spacecraft was part of the New Millennium Program. It was the first satellite to map active lava flows from space; the first to measure a facility's methane leak from space; and the first to track re-growth in a partially logged Amazon forest from space. EO-1 captured scenes such as the ash after the World Trade Center attacks, the flooding in New Orleans after Hurricane Katrina, volcanic eruptions and a large methane leak in southern California.^[3]

^ ^a ^b Ray, Justin (22 November 2000). "Delta 2 rocket puts three satellites into Earth orbit". Spaceflight Now. Archived from the original on 18 April 2022. Retrieved 14 April 2017.
^ "EO 1 - Trajectory Details". National Space Science Data Center. NASA. Archived from the original on 18 April 2022. Retrieved 14 April 2017.
^ "NASA says goodbye to Earth Observing-1 (EO-1) satellite after 17 years". 17 March 2017. Archived from the original on 18 April 2022. Retrieved 14 December 2017.

[sfnow20001122-1] Ray, Justin (22 November 2000). "Delta 2 rocket puts three satellites into Earth orbit". Spaceflight Now. Archived from the original on 18 April 2022. Retrieved 14 April 2017.

[nssdc.orbit-2] "EO 1 - Trajectory Details". National Space Science Data Center. NASA. Archived from the original on 18 April 2022. Retrieved 14 April 2017.

[17years-3] "NASA says goodbye to Earth Observing-1 (EO-1) satellite after 17 years". 17 March 2017. Archived from the original on 18 April 2022. Retrieved 14 December 2017.

[1]

[2]

[3]