RHESSI Data Analysis Software Change History
Notes:
Some of the dates are links which will give you more information about the
change.
Only the more significant changes are documented here. Minor changes are
ongoing.
| 31-May-2012 | SPECTRUM - A new control parameter, INSERT_KEDGE, was added to support better precision in the detector response around the instrumental K-edges for germanium, molybdenum (Grid 1 only), and tungsten. Default is 0 (no effect) until after the June 2012 SPD meeting. |
| 16-Mar-2012 | IMAGING - For over-the-limb flares, two new parameters are available to ensure that the grids are precisely aligned to a REFERENCE_POSITION_ANGLE (in radians) for one roll bin sequence in the stacked eventlist and corresponding visibility. Enable this feature by setting USE_REFERENCE_POSITION_ANGLE. |
| 1-Nov-2011 | IMAGING - In the hessi image widget, you can now set the image center graphically by clicking the 'Click Image to Set Map Center' button. |
| 23-Sep-2011 | IMAGING - In hessi image widget, more options
were added to the Display-> Aspect Solution button to plot p_error,
triangles, and distance from Sun center to image axis. From the
command line, these plots can produced via asp_obj -> plot, /plot_dist or /plot_triangle or /plot_p_error |
| 18-Apr-2011 | OBSERVING SUMMARY - In the GUI, you now have the option to select which detectors to plot the quicklook count rate data for. Previously used only the obs_summ files, which have a fixed set of front and rear detectors already combined. Now also use the full_rate files, which have data for the 18 separate detector segments. |
| 1-Apr-2011 | IMAGING - By setting CBE_MULTI_ATTEN_THRESHOLD, you can now make images in time intervals that span a change in attenuator state. |
| 1-Apr-2011 | ASPECT SOLUTION - The error term of the aspect solution is now checked and bad data points are not used. |
| 28-Mar-2011 | ASPECT SOLUTION - Improved quality of aspect solution where the pointing is just outside the nominal field of view. Previously rejected all 3-limb solutions if some were isolated (which happened frequently). Now uses sets of contiguous 3-limb solutions. |
| 1-Mar-2011 | IMAGING - Removed a number of dangling pointer references, fixing the source of a number of memory leaks. |
| 7-Feb-2011 | BROWSER - SDO AIA Flare Cutout link added for some RHESSI flares. Place red time arrow on a flare; if AIA cutouts are available for that flare, the 'AIA Flare Cutout' on the left side of Browser will become active. |
| 18-Jan-2011 | SPECTRUM - Added a button on spectrum widget to write separate detector FITS files with native energy bins (can be done from the command line using the hsi_spectrum_sep_det_files routine. |
| 21-Jan-2011 | Widgets in HESSI GUI, PLOTMAN, OSPEX, etc. should now work on small displays. A vertical scroll bar is added if the widget would otherwise be too big for your screen. (please email kim.tolbert@nasa.gov if I've missed any big widgets) |
| 29-Sep-2010 | SIMULATIONS - A bug in the simulation software
(in hsi_sim_dummy_livetime.pro) that caused the last 5% of any simulation to have 0 livetime was fixed. |
| 1-Sep-2010 | RHESSI FLARE CATALOG - New version of the flare catalog is online that uses the 6-12 keV energy band (previously used 12-25 keV) and now includes ~24,000 microflares. More details. |
| 23-Aug-2010 | OSPEX -added chi2_map method to compute uncertainties on fit parameters. Chisquare mapping analysis consists of varying one parameter through a range of values surrounding the best-fit value, fitting the other parameters, and then examining the chisqr vs parameter value curve to determine 1- and 2-sigma error estimates. More details are in the full OSPEX documentation. |
| 20-May-2010 | BROWSER - Added daily and orbital Fermi GBM plots to BROWSER. The orbital plots are on RHESSI orbit times, so the plots should line up with the RHESSI orbital plots. |
| 13-May-2010 | OSPEX -added albedo function component. |
| 1-May-2010 | IDL 6.1 is now the minimum version required to run RHESSI software. |
| 16-Apr-2010 | IMAGING - Added a new control parameter, CLEAN_REGRESS_COMBINE. Defaults to 0. Set to 1 to combine the component map with the residual map based on a regression of the count rate profiles from each of the two maps against the observed profile, resulting in a better match between the average observed and measured profiles. |
| 15-Apr-2010 | IMAGING - There is a new tool for comparing observed modulation profiles with the expected profiles calculated from a reconstructed image, and for calculating the C-statistics and other fit parameters resulting from that comparison. More details. |
| 15-Mar-2010 | OSPEX - added monte_carlo method to compute uncertainties on fit paramaters. Monte Carlo analysis consists of doing many fits to Poisson random deviates of the model computed from the best-fit parameters, and determining the spread of the resulting fit parameters. More details are in the full OSPEX documentation. |
| 20-Jan-2010 | SPECTRUM - For rear segments, implemented artifact mask to remove artifacts in fixed channels from specific detectors. Used in spectrum and SRM files export to OSPEX. |
| Jan-2010 | OSPEX -FERMI GBM data can now be analyzed by OSPEX. See the Fermi Solar Flare Observations page for more information.. |
| 3-Dec-2009 | OSPEX - Corrected problem with sigma of fit parameters. A new version of mcurvefit was onlined that provides more reliable, stable sigmas on fit parameters. A problem with the old version allowed sigmas to become unreasonably small in some cases. |
| 30-Nov-2009 | OSPEX - YOHKOH GRS data can now be analyzed by OSPEX |
| 9-Sep-2009 | SPECTRUM - Added rear_no_anti control parameter (defaults to 1) to remove anti-coincidence rejection for rear detectors. Extended DRM to higher energies (150 MeV) and made DRM consistent with the non-anti-coincident condition. |
| 24-Aug-2009 | OSPEX - New RHESSI OSPEX User Guide online |
| 4-Aug-2009 | GOES - Added a button on the Image, Spectrum, and OSPEX widgets to plot a GOES time profile for the currently selected time interval. |
| 16-Jul-2009 | IMAGE - Added UV_SMOOTH image reconstruction algorithm. |
| 7-May-2009 | Object parameter tables updated to include
parameters for visibility and vis-based image algorithm objects. http://hesperia.gsfc.nasa.gov/ssw/hessi/doc/params/hsi_params_all.htm |
| 4-May-2009 | Improved visibility object software, visibility
bags, image cubes from visibilities. Complete info at
http://hesperia.gsfc.nasa.gov/ssw/hessi/doc/image/hsi_visibility_howto.html cbe_digital_quality default changed to .95 |
| 3-May-2009 | Change in notification of software modifications. |
| 1-Feb-2009 | Commonly used documentation now available offline. Table of contents in $SSW/hessi/doc/index.html |
| 6-Apr-2008 | New post-anneal gain solution online |
| 28-Mar-2008 | Important: RHESSI gain calibration issue since anneal |
| 16-Jan-2008 | RHESSI detectors successfully annealed |
| 19-Dec-2007 | Release 9.0 |
| 5-Nov-2007 | PLOTMAN plot options improved. Users can now set their own preferences. |
| 3-Oct-2007 | Halfscale artifact filtering method implemented |
| 13-Jul-2007 | Support for harmonics and visibilities |
| 10-May-2007 | Release 8.9 |
| 12-Apr-2007 | More about using old control parameter defaults and setting your own defaults. |
| 12-Apr-2007_(a) | Critical improvements to the datagap detection and livetime integration algorithms |
| 26-Mar-2007 | Change in RHESSI object control parameter default values |
| 10-May-2006 | Release8.8 |
| 24-Feb-2006 | Release 8.7 |
| 20-Sep-2005 | Release 8.6 |
| 6-Sep-2005 | Changes in how the RHESSI software finds data files. |
| 30-Aug-2005 | Default RHESSI subcollimator response table has been updated. |
| 2-Aug-2005 | Improvements to pileup correction, offaxis response determination, and livetime calculation. |
| 8-Jul-2005 | Release 8.5. |
| 22-Jun-2005 | Improvement and bug fix for pileup correction. |
| 10-Mar-2005 | New image object that handles
both multi-image cubes and single images. http://hesperia.gsfc.nasa.gov/ssw/hessi/doc/image/hsi_image_howto.html http://hesperia.gsfc.nasa.gov/ssw/hessi/doc/gui/gui_changes_march2005.html |
| 8-Mar-2005 | Release 8.4. |
| 23-Feb-2005 | Fixed image blurring caused by culling bug. |
| 16-Dec-2005 | Release 8.3. |
| 29-Nov-2004 | Changes to Back Projection and Clean, new parameters for culling, rate-enabled back projection, local averaging and more. |
| 7-Sep-2004 | Fixed bug that caused incorrect source position in images in rare cases. |
| 29-Jul-2004 | Enabled writing multiple attenuator states in a single SRM FITS file. |
| 16-Jul-2004 | Release 8.2. |
| 7-Jun-2004 | Changed release/development version strategy. |
| 19-Mar-2004 | Release 8.1. |
| 29-Sep-2003 | Updated Roll database covering February 2002 through August 2003 online. |
| 12-Sep-2003 | Decimation, pileup, and flare position corrections implemented. |
| 12-Aug-2003 | Roll Aspect Data Base introduced. |
| 14-Jul-2003 | Livetime accumulation correction. |
| 14-Jul-2003 (a) | Detector 2 degraded. |
| 1-Jul-2003 | Improvements to SPEX and XRAY packages. |
| 3-Mar-2003 | More explanation about new daily observing summary files. |
| 11-Feb-2003 | Release 8 of HESSI Analysis Software online. |
| 18-Nov-2002 | Many changes to HESSI Analysis Software on ATEST (dropouts, deadtime, narrow spectrogram bins, SPEX export, error handling mechanism). |
| 17-Nov-2002 | Error handling mechanism (catch) added to HESSI software. |
| 15-Nov-2002 | SPEX thermal spectra now includes atomic line emission below 8 keV. |
| 26-Oct-2002 | Correction to image normalization at high energies - front/rear segment issues. |
| 22-Oct-2002 | Error in image and spectra normalization - assumed thin attenuator always in place. |
| 1-Oct-2002 | Spectral response matrix error for front segment of Detector 9. |
| 19-Sep-2002 | Daily observing summary files, daily instrument log files, and corrected count rate plots introduced. |
| 29-Aug-2002 | Fixes to dropouts, livetime. Detector gain a function of date. |
| 24-Jul-2002 | Interpolated roll solution for July 23 event. |
| 16-Jul-2002 | Imaging with Grids 1 and 2 fully supported. |
| 11-Jul-2002 | PMTRAS diagnostic plots. |
| 8-Jul-2002 | New multiple energy band parameter for imaging. Change in sum_flag, sum_coincidence parameters. |
| 19-Jun-2002 | Livetime corrections enabled for all classes (spectrum, lightcurve, and image). |
| 22-May-2002 | Preliminary subcollimator response table to enable imaging with Grids 1 and 2. |
Last updated
31 May 2012
by
Kim Tolbert
,
301-286-3965