06.11.2008:
CALIPSO operations and processing have resumed. The payload became operational
at 20:50 UTC on June 10.
•
06.04.2008:
CALIPSO data processing has been suspended. The payload transititioned to safe
mode on June 3 and the team is investigating. Please check for an update on
the status of the mission.
•
04.24.2008:
CALIPSO Expedited Browse Images are now available and have a processing
latency of about 12 hours. These products use degraded attitude information,
a simple calibration scheme based on climatology and are made available to
support operational forecasting activities. When available, the standard
products should be used for detailed science analysis.
» View CALIPSO Products.
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03.24.08:
A few weeks ago the CALIPSO Data Management Team experienced a hardware
failure of its storage system resulting in the loss of several terabytes of
data, including the lidar browse image data available from this web site.
Please keep in mind that CALIPSO data will always be available at Langley's
Atmospheric Science Data Center,
however the browse images available on this web site will need to be
regenerated and the CALIPSO Data Management Team is diligently working to
get this data back online.
•
03.13.08:
The CALIPSO Science team held their first meeting of 2008 from March 11 to 13
in Paris. The meeting was held at the Centre National d'Etudes spatiales
(CNES) headquarters and included science team members from around the world.
The meeting included morning sessions that focused on data validation and the
Version 2 algorithms, afternoon sessions that concentrated on new science
discoveries and findings using CALIPSO data products, and daily poster
sessions with space for 10 posters each day. The meeting highlighted studies
that use and combine CALIPSO data with other A-Train observations and/or
with models to improve our understanding of climate, weather, and air quality
as well as improve model predictions.
•
03.12.08:
The CALIPSO spacecraft transitioned to Safe Hold Mode on
March 3 in response to an anomaly with one of the reaction
wheels used to maintain the satellite attitude. The Safe Hold
sequence automatically turned off the CALIPSO payload,
activated survival heaters, and placed the satellite in a
sun-pointing inertial mode. The spacecraft reactiviation
process was completed on March 7 with no sign of degraded
reaction wheel performance. The payload was fully
reactiviated and began collecting science data on
March 11.
•
02.04.08:
CALIPSO reached its first billionth laser show on Sunday,
February 3 at 13:18:04 UTC. After traveling more than 260
million miles since launch in April 2006, this landmark is a
wonderful reflection on the engineering and science success
of CALIPSO.
•
01.28.08:
Release 2 of the CALIPSO lidar data set is now available at
the Atmospheric Science Data Center.
See the CALIPSO Data Quality Statements for details on this
new version of the data set.
•
11.14.07:
Approximately twenty-two hours of CALIPSO science data were
lost due to a ground network support conflict on November 5,
2007.
07.12.07:
CALIPSO to provide field mission support to NASA TC4:
+ NASA TC4 Field Mission Support.
•
05.11.07:
CALIPSO Science Team Meeting will be held June 11-15 in San Francisco.
•
12.08.06:
Public release of CALIPSO Data Products
The Cloud-Aerosol Lidar and Infrared Pathfinder Satellite
Observation (CALIPSO) satellite mission is pleased to
announce an initial release of its data products. CALIPSO
provides new insight into the role that clouds and atmospheric
aerosols (airborne particles) play in regulating Earth's
weather, climate, and air quality. CALIPSO is a joint mission
between NASA and CNES, the French space agency.
CALIPSO's payload includes an active lidar (CALIOP), a
passive Infrared Imaging Radiometer (IIR), and visible Wide
Field Camera. This data release consists of data beginning
in mid June 2006 and includes Level 1 radiances from each of
the instruments. This release also includes the lidar Level 2
vertical feature mask and cloud and aerosol layer product.
The CALIPSO data are available through the Atmospheric Science
Data Center (ASDC) at NASA Langley Research Center and can be
accessed at the following URL:
Reference resources on the CALIPSO data
set, including detailed data quality summaries and a data
catalog are also available at the ASDC CALIPSO page.
If you have questions concerning the ordering of CALIPSO
data products, contact User Services at larc@eos.nasa.gov.
•
12.07.06:
The CALIPSO payload controller has been turned off, and won't
resume operations before Monday, 12.11.06. Read
more: » + Instrument Status Page
06.09.06:
The first X-band data following the lidar align came in last
night and we spent today locating an interesting data segment
and making some nice looking images. Shown here is 532 nm
total backscatter data, nighttime, averaged to 5 km horizontal
resolution. The depolarization and 1064 data look good also.
The map shows the ground track. In the first plot the
satellite is near 60 N heading south. Near 8 N there is a
layer near 20 km which we believe is the plume from the
eruption of Soufriere a few weeks ago. A large polar
stratospheric cloud can be seen above Antarctica.
Congratulations to the engineering team for building such a
nice instrument. » View pdf of "first light" data.
•
06.07.06:
The CALIPSO laser transmitter and receiver were successfully
aligned today. A boresight search sequence and two boresight
align sequences were executed during three consecutive
night-side orbits. Comparisons of the alignment position
from the two align sequences demonstrate repeatable
performance. Overall spacecraft and payload performance
continue to be nominal. A Lidar "First Light" image will be
produced from today's X-Band data set as soon as it is
received, processed and verified; look for something early
next week.
•
05.31.06:
CALIPSO is in the A-Train! The spacecraft is in its final
orbit and "first light" is expected soon. Stay tuned for more
updates.
•
05.30.06:
CALIPSO Images: View images from the mission in the image
gallery and in the slideshow below.
» View the pictures
•
05.18.06:
The first two science instruments on the CALIPSO Satellite,
the Imaging Infrared Radiometer and the Wide Field Camera,
have been powered up and are healthy. First-Light science
data were received from the IIR on 11 May and the initial
assessment is positive. The WFC was powered up on 15 May,
and first-Light science data were received on 18 May. The
process for powering the third instrument —the
Lidar— is well underway. Stay tuned for more updates.
•
05.04.06:
Powering up: The payload controller has been activated and
the IIR is expected to be turned on next week. Stay tuned for
more updates.
•
04.28.06:
CALIPSO and CloudSat have launched!!!! For more information,
visit the NASA portal web site:
» http://www.nasa.gov/calipso
