LIA Bugs: Details & Fixes

NOTE: When an updated routine is available, it will include all improvements previously implemented. In some cases a bug has been spotted but the fix is not yet implemented: the status of bug fixing status is also shown.

April 27, 1998 -IA_ABSCORR

In case of more than 2 Illuminator Flashes during an AOT, the two Absolute Correction Factors shown in the text fields under 'OLP used ...' do not refer to the two opaque flashes done at the beginning and at the end of each AOT (as they should); they instead erroneously refer to the first opaque and first non-opaque flash. If the user estimates his own correction factors then there is no problem. If, on the other hand, the user wants to adopt for the second flash the value under 'OLP used...', the wrong value will be picked (corresponding to the second flash and not to the second OPAQUE flash). The latest version of IA_ABSCORR that can be downloaded (see below), incorporates this fix.

Fixed in LIA 7.1

April 30, 1998 - IA_DARK, IA_ABSCORR

The two routines are now retaining the information on the 'groups' found in the data. For instance, in an LWS01 AOT a 'group' is a series of scans contained among two illuminator flashes (not necessarily opaque). Previous versions of IA_DARK and IA_ABSCORR did not take this into account and could have produced unreliable results. This version of IA_DARK also contains two minor updates: 1) the interpolated dark current is now shown as a solid red line and 2) a label is attached to each detector button reminding the user if a subtraction has been done or not. Button labels range from L1 to L4 for the four options available under 'Linear Interpolation,' and from P1 to P3 for three orders available under polynomial fitting.

Fixed in LIA 7.1

May, 1998 - FP_PROC

The routine is not applying the velocity correction for the spacecraft motion, and does not recognize raster maps.

Fixed in LIA 7.1

June, 1998 - IA_DARK

The routine is occasionally (and erroneously) including, in the dark current estimate, some points pertaining to the dark measurement after the flash.

Fixed in LIA 7.1

April, 1998 - IA_DARK

The 3rd order polynomial fits to dark current values fails under ISAP 1.5, due to a precision problem under IDL 5.0.3 and higher versions.

Fixed in LIA 8.0

January, 1999

Following ISAP 1.6a release, it was realized that LIA 7.2 will not work if the full ISAP 1.6a installation is made. The LIA version 7.2a should be downloaded and installed. Please note that LIA 7.2a is not an upgrade of version 7.2 in terms of functionalities and data processing; the two versions do not differ but for minor details concerning startup definitions and compatibility with ISAP 1.6a. In other words, if you already processed your data using LIA 7.2, you do not need to reprocess them with version 7.2a.

Fixed in LIA 7.2a

May 1999 - SHORT_AAL

Keyword /noflux added to prevent removal of RSRF and grating resolution element.
Fixed in LIA 7.1

Feb 2000 - SHORT_AAL

Keyword /fglitch added to allow data after a glitch to still be kept.
Fixed in LIA 8.0

Apr 2001 - INSPECT_RASTER

Fix to return RA, Dec as vector arrays rather than scalar arrays.
Fixed in LIA 8.1

Sept 2001 - FPWAVE

      Keyword /vlsan added to ensure velocity correction can be applied from LSAN header if values not present
      in SPD header.
      Fixed in LIA 10.0

Sept 2001 - A95_CLEANPLOT

!X, !Y, !Z system variables now arrays in IDL 5.4.
Fixed in LIA 10.0

Sept 2001 - FP_PROC

Many new features to FP_Proc - see relevant documentation page on FP_PROC for full details
Fixed in LIA 10.0

Last modified: September 2001
Gerard Hutchinson