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ASTER Terra Constellation Exit - 1/19/2023
In April 2022, Terra began drifting to an earlier crossing
time, reaching 10:15 am in October. In
mid-October, Terra lowered its orbit by 6 km. After
"constellation exit" ASTER science
observations are continuing as before. Science observations
will continue in concert with the
changing MLT. The major effect will be that the ASTER
surface sampling pattern will no longer
be repeating every 16 days. However, sample locations will
be reported with the data in the same
format as current data. The ASTER single pixel footprint
size will decrease about 1% with the
lower orbit altitude, but will be maintained at 15m and 90m
through re-sampling. We do not
expect these orbit changes to have significant impacts to
ASTER data quality.
ASTER Upcoming Terra Constellation Exit - 1/29/2021
Terra has completed all mission maneuvers related to
maintaining a 10:30 mean local time (MLT) equator crossing
and 705 km orbit altitude. Terra will begin drifting to an
earlier MLT around April 2021. In October 2022, Terra will
have a 10:15 AM MLT crossing, and continue to drift to
earlier MLT. At this time, we will also lower our orbit
altitude to 694 km. After constellation exit, ASTER science
observations will continue in concert with the changing MLT.
The major effect will be that the ASTER surface sampling
pattern will no longer be repeating every 16 days. However,
sample locations will be reported with the data in the same
format as current data. The ASTER single pixel footprint
size will decrease about 1% with the lower orbit altitude.
We do not expect these orbit changes to have significant
impacts to ASTER data quality. For more information, click
on the link to Terra website.
ASTER News Update - 11/13/2019
77,768 Acres of Damage in California Kincade Fire
ASTER News Update - 11/5/2019
Mike Abrams interview about California Kincade Fire Burn
Scar
Seen From Space
ASTER News Update - 10/19/2019
New Satellite Imagery Shows Rapid Pace of Andean Glacier
Melt
ASTER News Update - 10/14/2019
Deeper Insight into 2019 Fires in Amazon Rainforest
ASTER News Update - 10/10/2019
Deforestation Could Exacerbate Drought in the Amazon
ASTER News Update - 10/8/2019
New Age Metals: Size of Prospective PGM-Cu-Ni
Mineralization Doubled at Genesis PGM-Cu-Ni Project,
Alaska
ASTER News Update - 9/14/2019
Deeper Insight Into 2019 Fires From Satellite Study of
Amazon
Rainforest
ASTER News Update - 9/14/2019
Deeper Insight Into 2019 Fires From Satellite Study of
Amazon
Rainforest
ASTER News Update - 7/25/2019
New Age Metals: Alaskan Genesis PGM-Cu-Ni Project Summer
2019 Field Update
ASTER News Update - 7/11/2019
Volcanic island is transformed by an eruption
ASTER News Update - 6/22/2019
Declassified Spy Photos Reveal The True Scale of Melting
of
The Himalayan Glaciers
ASTER News Update - 6/6/2019
Revived Russian volcano could cause Pompeii-like
destruction
ASTER News Update - 5/17/2019
Yellowstone volcano: How NASA spotted LARGE anomaly
below caldera OVERNIGHT
ASTER News Update - 8/10/2018
NASA Data Is Making Video Games Stunningly Realistic
ASTER News Update - 7/28/2018
NASA Satellite Captures Lava Destruction from Kilauea
Volcano
ASTER News Update - 5/12/2018
NASA Satellite Spies Hawaii Volcano Ash Plume
ASTER News Update - 3/29/2018
25 incredible images of the Earth taken from space
ASTER News Update - 12/20/2017
Spatial Information CRC to continue beyond funding deadline
ASTER News Update - 10/26/2017
Scars from Wine Country Wildfires Spotted from Space
ASTER News Update - 10/15/2017
NASA Satellites Monitor California's Blazing Wildfires from
Space
ASTER News Update - 10/14/2017
North Bay Firestorm: Satellite image shows smoke pouring across
Bay Area
ASTER News Update - 10/11/2017
Scar from One of Los
Angeles Biggest Wildfires
ASTER News Update - 10/11/2017
An
1888 Volcanic Collapse Becomes a Benchmark for Tsunami
Models
ASTER News Update - 8/23/2017
NASA Responds to Hurricane Harvey
ASTER News Update - 8/23/2017
Volcano Image Looks Like Entrance to Hell
ASTER News Update - 7/22/2017
Glacial retreat affects river flows and aquifers
ASTER News Update - 7/19/2017
Mud Volcano Erupting for 10 Years
ASTER News Update - 7/15/2017
Satellites Predict End of Volcanic Eruptions
ASTER News Update - 6/12/2017
Thermal Imagery Aids in Intelligence Gathering
ASTER News Update - 4/24/2017
Six Best ASTER Images
ASTER News Update - 3/15/2017
New Zealand's Glaciers Are Retreating
ASTER News Update - 2/10/2017
NASA Studies Hawaiian
Volcanoes
ASTER News Update - 1/13/2017
Museum Finds a New Spark
ASTER News Update - 1/5/2017
Pretty As A Picture
ASTER News Update - 9/13/2016
Evaluation of Different DEMs Four DEMs are evaluted, including ASTER.
ASTER News Update - 8/29/2016
What NASA Did Over Your Summer Vacation. ASTER observes summer wildfires.
ASTER News Update - 6/16/2016
NASA Earth Observatory highlights national parks in satellite photo series This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 6/16/2016
A satellite eye on Mount Ruapehu
Scroll down to the fourth article about Mount Ruapehu. This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 6/6/2016
2.95 million satellite images now available online This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 4/22/2016
Celebrate Earth Day WIth These Stunning Images Of Our Beautiful Planet This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 4/21/2016
ASTER Instrument Shows Site of Devastating Japan Quakes
ASTER Website Update - 4/20/2016
Updated the Full ASTER Bibliography (pdf 2.9 MB) on the
Presentations and Documents page
ASTER News Update - 4/1/2016
NASA, Japan make ASTER Earth data available at no cost
ASTER News Update - 3/25/2016
Monitoring Volcanoes Using ASTER Satellite Imagery This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 7/2/2015
Identifying areas prone to lahars volcanoes This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 6/3/2015
NASA-led volunteers map landslides by Nepal quakes This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 11/19/2014
Worldwide retreat of glaciers confirmed in unprecedented detail This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 6/27/2014
Nebraska’s twin tornadoes scarred the Earth (Imagery) This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 2/7/2014
Sochi Winter Olympics Sites in Russia As Seen From Orbit This link will take you to an outside site neither controlled nor sponsored by NASA.
ASTER News Update - 11/13/2013
Phillipine Hurricane Destruction This link will take you to an outside site neither controlled nor sponsored by NASA.
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