Technical Notes and Talks Star Catalog (AGASC) Reports and Links ACA cooldown and dark current analyses ACA monitoring and trending Online Utilities Documentation and reference pages Star catalog Hall of Shame Papers People
2020 18-Mar-2020 Update to star and fid plate scale 2015 24-Mar-2015 Search the mission for interesting fid drop events 2014 20-Oct-2014 Compute star intensity noise in faint stars to estimate monitor mag limit 09-May-2014 ECR: Update CALALIGN align matrices 2013 21-Nov-2013 State of the ACA 2013 (pdf) 17-Sep-2013 Impact of status flags on OBC Kalman stars 2010:001 - 2013:250 06-Sep-2013 ACA CCD thermal model 05-Sep-2013 ACA CCD warming overview for MPCWG 05-Aug-2013 ACA bad status fraction vs. warm fraction and magnitude 11-Mar-2013 Interesting attitude control oscillations in obsid 14680 16-Jan-2013 Evaluation of use of 8x8 image data for guide stars during science 2012 24-Sep-2012 Color and Observed Mag Error 24-Aug-2012 OBC Bad Status vs Mag over time 2011 26-Jun-2011 Apparent SIM drift during observations 23-Jun-2011 Ska Runtime Enviroment 0.10: content, test, and transition plan 16-Feb-2011 Flight Note: Monitoring ACA Flickering Pixels (PDF) 27-Jan-2011 Flickering Pixel Analysis, 2008 and 2002 data 2010 08-Sep-2010 ECR: Add FTS Periscope Correction to Aspect Pipeline 08-Sep-2010 ECR: Add PERIFIDCORR HDU to PCAD CALALIGN CALDB files 2009 09-Feb-2009 Obsid 9931: unusual star and fid drops 2008 08-Aug-2008 ACA Overview (CC training) 25-Mar-2008 ECR: Add ACISFIDCORR HDU to PCAD CALALIGN CALDB files (PDF) 22-Feb-2008 Failed gyro glitch correction in obsid 8059 2007 21-Dec-2007 Aspect L1 tool spec: corr_fid_cent 01-Oct-2007 Momentum dumps during science: FDB presentation 25-Sep-2007 Cooling the ACIS DH and fid lights: Test results 16-Jul-2007 ACIS fid light cooling 08-May-2007 ECR: Update CALALIGN align matrices (PDF) 19-Jan-2007 Change ACIS-S and ACIS-I default aimpoint offsets (PDF) 17-Jan-2007 SAUSAGE fid position update (PDF) 2006 23-Mar-2006 Acquisition Anomaly TWiki Page 22-Mar-2006 Fid Drop Inquiry 22-Feb-2006 Plate Scale Pre/Post Cooldown 07-Feb-2006 ACA TIM TWiki page 30-Jan-2006 Guide star tracking statistics - 2006 update 17-Jan-2006 ACA Star Acqusition Times 11-Jan-2006 2002-2006 Plate Scale Calibration 2005 22-Dec-2005 December 2005 Starcheck Release Notes 12-Oct-2005 Saturated Star in Obsid 5438 21-Sep-2005 Continued: Measuring ACA CTI by dithering stars across quadrant boundaries 23-Aug-2005 Notes on the ACIS-S SIM-Z exclusion region of -8 to -11 mm 05-Aug-2005 Background Brightness and Dark Current Calibration 19-Jul-2005 Evaluation of ACA Dark Current Shift, 2005-Jul 08-Jun-2005 Starcheck Jun-2005 release test results 14-Feb-2005 Defective Pixel in ObsId 4533 14-Feb-2005 Characterized alignment drift during observations 14-Feb-2005 More cases of the obsid 4977 acquisition anomaly 2004 20-Dec-2004 Spec for aspect pipeline proper motion correction 08-Dec-2004 Alignment drift during observations 30-Nov-2004 Attitudes for ACA dark current calibrations 13-Oct-2004 ACA high background: Correlation with solar array angle and momentum dumps 24-Aug-2004 EPHIN Thermal Phenomenology 17-Jun-2004 Gyro telemetry glitch in Obsid 4611 26-Apr-2004 Proposed geometry and possible solutions for the ACIS fidlight 6 anomaly 26-Apr-2004 Safe limits for brightening fidlights 20-Apr-2004 ACA quadrant gain differences measured from dark current calibration data 02-Apr-2004 Measuring ACA CTI by dithering a star across quadrant boundaries 18-Feb-2004 Accuracy of AGASC 1.5 Star Magnitudes 08-Feb-2004 Measuring ACA CTI from dark current calibration data 02-Feb-2004 Measuring ACA CCD contamination using commonly revisted guide stars 21-Jan-2004 Aqcuisition anomaly in Obsid 4977 2003 18-Nov-2003 Read Noise and Gain of the ACA Primary CCD 18-Nov-2003 ECR: Update CALALIGN coefficients to correct ACIS-S fid positions based on SIM-Z offset 28-Aug-2003 ACA and Aspect Performance After 15 Years 01-Aug-2003 Alignment drift during IRU swap and ACA cooldown (Updated 29-Sep-2003) 15-Jul-2003 Guide Star Tracking Statistics 14-Jul-2003 Large drift in SIM-Z in Obsid 3964 23-Jun-2003 Ground aspect requirements for swap to IRU2 29-Apr-2003 Image reconstruction performance: Change from 2000 to 2003 18-Mar-2003 Analysis of Aspect Reprocessing and V&V Limits 08-Jan-2003 ACA Star Selection - B-V Color 2002 11-Dec-2002 History of IRU Calibration presentation 26-Nov-2002 ACA Star Selection - Search Spoilers 29-Oct-2002 Bright Earth "Fly-by" Test for the ACA, 2002-October-23 10-Sep-2002 Flickering Pixel Analysis 29-Aug-2002 Bright Earth Occultation Test for the ACA, 2002-August-20 16-Aug-2002 Updating Slew Error Table presentation 09-Aug-2002 Bright Earth Occultation Test for the ACA, 2002-August-02 25-Jun-2002 Bright Earth Occultation Test for the ACA, 2002-June-18 14-May-2002 ACA high background anomaly: FDB closeout (PDF) 29-Apr-2002 ECR: Update CALALIGN align matrices 16-Apr-2002 ECR: Create CALALIGN coefficients to correct fid positions based on SIM-Z offset 25-Mar-2002 Starcheck reviews of star viewer loads 08-Jan-2002 Revised ACA plate scale coefficients 2001 08-Nov-2001 ACA pixel readout anomaly for fid ACIS-I-6 02-Nov-2001 CXC Processing of Interval after 2001:265 Bright Star Hold 30-Oct-2001 Chandra Calibration Review: Aspect 14-Sep-2001 ACA high background anomaly 13-Jul-2001 Proposed ECR to update fid positions and ordering in ODB 20-Apr-2001 Offsets due to radial spoilers Through 2000 15-Dec-2000 Flickering pixels in the ACA CCD 16-May-2000 ACIS-S and HRC absolute coordinate accuracy near aimpoint (superseded by 25-Oct-00 document) 13-Dec-1996 ACA EQ-spec Rev.E
--- Mission planning AGASC overview page --- AGASC supplement reports 18-Jul-2024 AGASC 1.8 18-Jul-2024 AGASC 1.8 FDB presentation 18-Jun-2024 AGASC 1.8 SSAWG meeting (internal) 20-Sep-2018 AGASC 1.7 24-Sep-2012 Color and Observed Mag Error 11-Jan-2005 FDB presentation (PDF) 14-Sep-2004 AGASC 1.6 Testing / Star Selection 14-Sep-2004 Calibration of AGASC 1.6 18-Feb-2004 Accuracy of AGASC 1.5 Star Magnitudes 08-Jan-2003 ACA Star Selection - B-V Color 26-Nov-2002 ACA Star Selection - Search Spoilers 30-Mar-2001 Effect of radial spoiling in star selection 26-Jan-2001 Accuracy of AGASC star magnitudes 16-May-2000 Magnitude errors in AGASC 1.4
---Dark Cals--- 02-Apr-2019 ACA Dark Current Calibration 2019-Apr-02 02-Jan-2019 ACA Dark Current Calibration 2019-Jan-02 18-Nov-2018 ACA Dark Current Calibration 2018-Nov-18 09-Jul-2018 ACA Dark Current Calibration 2018-Jul-09 10-Apr-2018 ACA Dark Current Calibration 2018-Apr-10 02-Jan-2018 ACA Dark Current Calibration 2018-Jan-02 Current Wiki Dark Cal List Current All Calibrations ---Zodiacal Light--- 05-Aug-2005 Background Brightness and Dark Current Calibration 19-Jul-2005 Evaluation of ACA Dark Current Shift, 2005-Jul 30-Nov-2004 Attitudes for ACA dark current calibrations ---ACA Cooling--- 18-Jun-2003 Results of cooling the CCD to -15C 23-Jun-2003 Cooling the ACA CCD from -12 to -13 11-Jun-2003 Cooling the ACA CCD from -11 to -12 26-May-2003 Cooling the ACA CCD - Intermediate Report 17-Feb-2003 Cooling the ACA CCD below -10 degC
ACA high-background monitor ACA acquisition statistics ACA alignment via fiducial light drift ACA weekly report AGASC supplement reports Celestial location monitor Commanded states validation FSS performance trending Periscope drift Ska job status (daily and hourly)
ACA Dashboard AGASC retrieval tool Replan Central / arc
ACA level-0 decom ICD ACA Load Review Checklist Aspect L1 pipeline data product ICDs Aspect L1 pipeline tool specs Aspect TWiki page Aspect tool documentation pages Coordinate Systems for Analysis of On-Orbit Chandra Data Instructions for running starcheck Matrix and Quaternion FAQ SCS Handbook Tables Starcheck development page Starcheck detailed review of checks and warnings Starcheck Red Warnings - May 2005 Starcheck Yellow Warnings - May 2005 Starting the Chandra ACA EGSE at the OCC / ACA EGSE Twiki Page / Backup OCCDS User Guide (PDF) SAUSAGE Characteristics (Spicy!)
Obs 11762 Obs 6101 Obs 5688
20-Jun-2002 Stellar Photometry using the Chandra Aspect Camera (AAS Poster) PDF 07-Nov-2001 Analysis of the Chandra X-ray Observatory Aspect Camera PSF and its Application to Post-Facto Pointing Aspect Determination PDF 15-Nov-2000 Kalman filtering in Chandra Aspect Determination (ADASS Poster) PDF Poster 27-Mar-2000 Initial performance of the aspect system on the Chandra Observatory: Post-facto aspect reconstruction PDF 27-Mar-2000 Initial performance of the attitude control and aspect determination sub-systems on the Chandra Observatory PDF
Tom Aldcroft Aspect operations and calibration, aspect pipeline science lead (OSS, SOT) Mark Cresitello-Dittmar Aspect pipeline development lead (DS) Jean Connelly Spacecraft / aspect data analyst (OSS, SOT) Javier Gonzalez Spacecraft / aspect data analyst (OSS, SOT)
DS Data Systems OSS Operations Science Support SOT Science Operations Team
Last modified:07/25/24
