News

CATS Status UpdateFeb 22 2017

CATS will be inhibited until the morning of GMT 55 (February 24th) for the approach of both Space-X 10 and Progress 66P.

CATS Status UpdateFeb 07 2017

CATS is operating near-continuously in mode 7.2.

CATS Status UpdateJan 31 2017

CATS will be inhibited for the morning of GMT 31(January 31st) for the undock and departure of 64P (Progress).

CATS Status UpdateJan 23 2017

CATS will be inhibited for the morning of GMT 27(January 27th) for the undock and departure of HTV 6.

CATS Status UpdateJan 10 2017

CATS will be inhibited on GMT 13 for ISS operations.

CATS Status UpdateJan 05 2017

The CATS is operating near-continuously in mode 7.2. CATS will be inhibited on GMT 16 from 07:00 to 11:00.

CATS Status UpdateDec 13 2016

The CATS is continuing operations in mode 7.2.

CATS Status UpdateDec 06 2016

The CATS will continue operations in mode 7.2 until HTV approach to ISS on the morning of December 13th (GMT day 348).

CATS Status UpdateDec 01 2016

The CATS has continued operations in mode 7.2.

CATS Status UpdateNov 21 2016

The CATS will continue to operate in mode 7.2 until the Progress 65P launch which is currently scheduled for December 1st.

CATS Status UpdateNov 01 2016

The CATS will operate near-continuously in mode 7.2 until the Soyuz launch scheduled for November 17th.

CATS Status UpdateOct 24 2016

CATS continues operations in mode 7.2. CATS will be disabled Sunday October 30th (GMT 304) from 00:00 to 04:00 GMT for the undock and landing of the Soyuz 47S.

CATS Status UpdateOct 21 2016

CATS will be disabled Sunday October 23rd (GMT 297) from 0600 to 1600 GMT for the docking of OA-5.

CATS Status UpdateOct 18 2016

CATS will be disabled Wednesday October 18th GMT 293/0100 until Friday GMT 295/1030 for the 48S Launch and Rendezvous.

CATS Status UpdateOct 11 2016

CATS will proceed operating near-continuously in mode 7.2. On Friday October 14th GMT 288/0200 to GMT 288/1530 CATS will be disabled for the 63P undock.

CATS Status UpdateOct 04 2016

CATS continues to operate near-continuously in Mode 7.2. Check out the “Image of the Week”, which highlights the utility of CATS and the ISS for studying unique cloud and aerosol features!

CATS Status UpdateSep 23 2016

CATS Version 2-07 Level 1B and Version 1-05 Level 2 Operational data products were recently released and are now available. These new products have a more accurate calibration, layer detection, and cirrus extinction retrievals. We encourage all CATS data users to download and analyze these new data products.

Also, for a description of the CATS instrument and project, we suggest you read McGill et al. 2015 (http://spie.org/Publications/Proceedings/Paper/10.1117/12.2190841). For data products and initial performance, you can read our recently published paper Yorks et al. 2016 at http://onlinelibrary.wiley.com/doi/10.1002/2016GL068006/full.

CATS Status UpdateSep 01 2016

CATS will proceed operating near-continuously in mode 7.2.

On Tuesday September 6th GMT 250/2000 to GMT 251/0145 CATS will be disabled for the 46S undock.

CATS Status UpdateAug 23 2016

CATS will proceed operating near-continuously in mode 7.2.

On Thursday August 25th GMT 238/1900 to GMT 239/1200 CATS will be disabled for the Space-X undock.

CATS Status UpdateAug 15 2016

CATS will proceed operating near-continuously in mode 7.2.

On Wednesday August 17th GMT 230/1900 to GMT 231/0300 CATS will be disabled for IDA Extraction and on GMT 232/0400 to GMT 232/1900 CATS will be disabled for an EVA on the International Space Station.

CATS Status UpdateAug 02 2016

CATS is continuing operations in mode 7.2 with no vehicular activity until the 22nd.

The next version of mode 7.1 L1B data has been released.

CATS Status UpdateJul 21 2016

CATS is continuing operations in mode 7.2.

CATS Status UpdateJul 19 2016

CATS is continuing operations in mode 7.2.

CATS will be off Wednesday Morning, GMT 202, from 7:00 to 15:00 for the berthing of Space-X 9 to the International Space Station.

CATS Status UpdateJul 15 2016

CATS is continuing operations in mode 7.2.

CATS will be off Saturday night (7/16) through Monday night due to the Progress 64P launch to the ISS.

CATS Status UpdateJul 06 2016

CATS is continuing operations in mode 7.2.

CATS will be off later tonight (7/6) through Friday night due to a Soyuz MS-01 docking for Expedition 48 which will transport 3 astronauts to the International Space Station.

CATS Status UpdateJun 21 2016

CATS is continuing operations in mode 7.2.

CATS L1B V2-07 and L2O V1-04 data products are now available both here at the CATS website and also at the ASDC site. The CATS Version 2-06 L1B data release included an error in the algorithm that remaps the raw CATS data to the final CATS data frame (-2.0 to 30.0 km at 60 m vertical resolution). The error caused certain bins to contain the same value of backscatter as the bin above. As a result, layer top and base heights are never detected at these bins in the V1-03 of the L2O data products. This error has been corrected in the new data products. Users that are analyzing cloud and aerosol top/based height distributions are advised to use the L1B V2-07 and L2O V1-04 data for their analysis.

CATS Status UpdateJun 15 2016

CATS continues operating in mode 7.2, but will turn off briefly for Soyuz Undock and Reentry, currently scheduled for June 18th.

CATS Status UpdateMay 31 2016

CATS continues operating in mode 7.2, but will turn off briefly for OA-6 Undock, currently scheduled for June 14th.

New versions of the CATS data products will be released in the coming weeks. The CATS Version 2-06 L1B data release included an error in the algorithm that remaps the raw CATS data to the final CATS data frame (-2.0 to 30.0 km at 60 m vertical resolution). The error caused certain bins to contain the same value of backscatter as the bin above. As a result, layer top and base heights are never detected at these bins in the V1-03 of the L2O data products. For CATS L1B V2-07 and L2O V1-04, this error has been corrected. Users that are analyzing cloud and aerosol top/based height distributions are advised to use the L1B V2-07 and L2O V1-04 data for their analysis.

CATS Status UpdateMay 24 2016

CATS is continuing operations in mode 7.2. CATS will turn off briefly for OA-6 Undock, currently scheduled for June 2nd.

CATS Status UpdateMay 11 2016

CATS continues operations in mode 7.2. CATS will be forced to be off briefly for the SpaceX-8 unberth from the ISS on Wednesday, May 11th between 12:30 and 15:00 UTC.

CATS Status UpdateApr 14 2016

CATS is operating near-continuously in mode 7.2.

CATS Status UpdateApr 09 2016

CATS is continuing near-continuous operations in mode 7.2. CATS will be off briefly on the 10th during Space-X 8 Dragon capture.

CATS Status UpdateMar 30 2016

CATS continues operations in mode 7.2. CATS is off shortly for the undock and departure of Progress today and will be off for duration of the next Progress launch and dock from the morning of the 31st through the morning of the 2nd.

CATS Status UpdateMar 21 2016

CATS continues operations in mode 7.2. CATS was off for the Soyuz docking on the 18th into the 19th and on the 26th will be deactivated for the Cygnus docking.

CATS Status UpdateMar 10 2016

CATS is running near-continuously in mode 7.2. CATS will be turned off for the multiple scheduled arriving vehicles in late March. Expect the release of Level 2 data products as early as the end of next week.

CATS Status UpdateMar 01 2016

CATS is back running near-continuously in mode 7.2 and will be off shortly tonight for the return of the Soyuz.

CATS Status UpdateFeb 25 2016

Due to issues at the POIC with CATS telemetry, CATS data collection was stopped over the weekend and has been infrequent while the issue is resolved. CATS health is still nominal.

CATS Status UpdateFeb 16 2016

CATS continues to operate near-continuously in mode 7.2. CATS will be turned off for the departure of the Cygnus cargo ship on the 19th.

CATS Status UpdateFeb 11 2016

CATS continues to operate near-continuously. Our latest version of the Level 1B products are processed and should be available soon. Level 2 products should be online before March 1st.

CATS Status UpdateFeb 02 2016

We are currently processing our latest version of the Level 1B data products (V2.06) that will be released in the coming weeks. This will include the data up to the current week!

CATS Status UpdateJan 22 2016

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2. CATS has been on orbit and attached to the JEM-EF for a full year!

CATS Status UpdateJan 12 2016

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2. Version 2.6 of the Level 1 data products will be released before the end of January.

CATS Status UpdateJan 06 2016

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2. The website will be updated shortly to include an “Image of the Week” component and version 2.6 of the Level 1 data products will be released before the end of January.

CATS Status UpdateDec 10 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2 and on 04 Dec. detected the volcanic plume from the Mt. Etna eruption.

CATS Status UpdateNov 20 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2.

CATS Status UpdateNov 05 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2.

CATS Status UpdateOct 28 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2.

CATS Status UpdateOct 09 2015

New data have been released! CATS L1b files and browse images for data up to September 1, 2015 are now available!

CATS Status UpdateOct 01 2015

CATS L1b version 2.05 data will be released soon for Mode 7.2. This includes L1b files and browse images for data up to September 1, 2015. Check back for updates.

CATS Status UpdateSep 18 2015

CATS L1b version 2.05 data will be released soon for Mode 7.2. This includes L1b files and browse images for data up to September 1, 2015. Check back for updates.

CATS Status UpdateSep 11 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2.

CATS Status UpdateAug 26 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2. CATS will not operate from Aug 27, 22:25 - Aug 28, 15:00 UTC due to spacecraft maneuvers.

CATS Status UpdateAug 20 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2. CATS will not operate from Aug 23, 22:00 - Aug 24, 14:50 UTC due to HTV5 spacecraft docking to the ISS.

CATS Status UpdateAug 05 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2.

CATS Status UpdateJul 30 2015

CATS continues to operate near-continuously in mode 2 (7.2) with laser 2.

CATS Status UpdateJul 23 2015

The Soyuz launch and docking was successful and CATS is back up and operating.

CATS Status UpdateJul 22 2015

CATS will not operate between 07/22/2015, 20:00 UTC and 07/23/2015, 14:00 UTC due to a scheduled launch of a Soyuz spacecraft. CATS operations will resume tomorrow, 07/23/2015, at approximately 14:00 UTC assuming the launch of the Soyuz happens as scheduled.

CATS Status UpdateJul 16 2015

CATS continues near-continuous operation in Mode 2 (7.2) using laser 2. Soyuz activities will force a pause in CATS operation between 07/22/2015, 20:00 UTC and 07/23/2015, 14:00 UTC. Assuming these activities do not slip, the CATS laser will then be turned back on by July 22.

CATS Status UpdateJun 25 2015

CATS continues near-continuous operation in Mode 2 (7.2) using laser 2. SpaceX CRS-7 activities will force a pause in CATS operation for a period of about 1 day. Currently, the SpaceX CRS-7 activities are scheduled for June 30, 2015. Assuming these activities do not slip, the CATS laser will then be turned back on by July 1.

CATS Status UpdateJun 15 2015

The browse images for the Mode 1 Level 1B data from Feb. 10 through March 02 are now available on the website (click Science, then Data). Browse images for later dates will be added in the coming days. Also, data files can be accessed by clicking the “HDF5” button next to the browse image thumbnail starting this week.

CATS Status UpdateJun 09 2015

CATS continues to operate in Mode 2 (532 & 1064 nm backscatter), with near continuous operation since March 25. Several recent events have been captured in the CATS data, including ice clouds from Hurricane Blanca on June 4. Initial data release of the Mode 1 Level 1B data from Feb. 10 through March 21 will occur Friday June 12, with browse images available here at the CATS website, as well as links to the data files.

Blanca Clouds

CATS Status UpdateMay 01 2015

CATS has been operating primarily in Mode 2 (532 & 1064 nm backscatter) since March 25, and will continue to operate in this mode. Several recent events have been captured in the CATS data, including the plumes due to the eruption of the Calbuco volcano in Chile. The team will continue to refine the calibration for all the data since operation began in February. Initial data release of the Mode 1 data from Feb. 10 through March 10 will likely occur in the coming months.

Calbuco Plume

CATS Status UpdateMar 12 2015

The CATS laser was turned off on Tuesday 3/10 in preparation for Soyuz spacecraft activities. On Thursday 3/12, the CATS team successfully turned on the second laser to test operation at all three wavelengths (355, 532, 1064 nm). The team will continue to monitor the operation of the second laser and perform instrument check-outs.

CATS Status UpdateFeb 27 2015

CATS has been running continuously since 22 February as we collect days worth of global lidar data. The CATS team has now turned their attention to optimizing the calibration. Uncalibrated data is being processed, as shown below from 00:59 to 01:19 UTC on 11 Feb. 2015 as the ISS passed over Africa. This CATS normalized relative backscatter image shows Saharan Dust, cirrus clouds near the equator, and smoke from biomass burning in Southern Africa.

Saharan dust, clouds, & biomass

CATS Status UpdateFeb 16 2015

The CATS laser was turned off on Friday 2/13 in preparation for the ATV undocking. The CATS laser was turned back on Sunday 2/15 and operated for over 24 continuous hours through Monday 2/16. Currently, the CATS laser is off in preparation for the Progress docking on Tuesday 2/17, but will be turned back on around 18:00 UTC on 2/17.

CATS Status UpdateFeb 07 2015

The CATS laser was fired successfully for the first time on Thursday 05 February around 3 PM EST and the laser is operating nominally. Data has been collected in segments as the CATS team continues initial instrument checkout procedures such as aligning the telescope.

CATS Status UpdateJan 23 2015

CATS was successfully installed onto the JEM-EF aboard the ISS on 22 Jan. 2015 at 9 AM EST. CATS was powered on and is currently sending health and status data to GSFC as the CATS team follows instrument checkout procedures.

CATS Status UpdateJan 13 2015

The SpaceX Dragon successfully docked to the ISS on 12 Jan. 2014. CATS will be installed to the JEM-EF on Friday 16 January. Once installed, the instrument will be powered on to achieve thermal stability. The first laser light will be sometime in late January.

CATS Status UpdateJan 07 2015

The SpaceX Falcon 9 launch scheduled for Tuesday, which includes CATS, was aborted due to an issue with a thrust vector control actuator. SpaceX is evaluating the issue and the next opportunity to launch is Saturday, January 10 at 4:47 AM EST.

CATS Status UpdateDec 22 2014

CATS is now scheduled to launch to the ISS on 06 January, 2015 at 6:18 AM EST and will arrive at the ISS on Jan. 08.

CATS Status UpdateDec 11 2014

CATS is now scheduled to launch to the ISS on 19 December, 2014 at 1:20 PM EST and will arrive at the ISS on Dec. 21.

CATS Status UpdateOct 16 2014

On 30 Sept. CATS left NASA GSFC for SpaceX facilities at Cape Canaveral, where it arrived a day later. CATS installation on the SpaceX dragon capsule was completed on 08 Oct., and CATS is scheduled to launch to the ISS on 16 December, 2014. CATS on Dragon