Detailed release note for pipeline 02000028_20010122.100409.

Changes with respect to the current pipeline are restricted to bug fixes
in the pipeline modules. No SAS package version number changes are
involved (although one SAS task is called with different parameter
values).

The module changes are required to allow the processing of ODFs which 
previously failed to run through the pipeline. The SAS changes correct the 
bad pixel removal parameters for the badpixfind call for the EPIC pn, 
resulting in cleaner images.
 
                       Current PCMS vsn         New PCMS vsn currently called
                       02000027/20001220.095050 03000033/20010119.152543

# ExpChooser           1.19 04-Dec-2000         1.2 09-Jan-2001
+ Add Grism to list of ignored filters.
+ Add info message about ignoring when there are no event lists.

# Finalize             1.08 19-Dec-2000         1.09 17-Jan-2001
+ Change name of used logo from 'SSC LOGO 1'
  to 'SSC LOGO 2' to avoid conflicts with the ACDS.

# ImageMerge           1.06 15-Dec-2000         1.07 10-Jan-2001
+ Add ignore rule (module is skipped if MakeImage module is skipped)

# InstrumentHK         1.03 19-Dec-2000         1.06 16-Jan-2001
+ Add ignore rules (skip if all exposures ignored), and add ExpChooser to
  start rule.
+ Remove ignore rule on number of exposures, as it was
  redundant and causing unnecessary DB access.

# MOSEvents            1.07 23-Nov-2000         1.08 11-Jan-2001
# + Remove GlobalHK from ignore rule.

# MakeSpectra          0.38 01-Feb-2000    
+ removed

# MakeTimeseries       0.30 01-Feb-2000    
+ removed

# OMSourceCombine      1.04 30-Nov-2000         1.06 10-Jan-2001
+ Add ignore rule (skip if OMgetFlat ignored)
+ Add OMgetFlat to start rule.

# OMgetFlat            1 23-Nov-2000            1.03 16-Jan-2001
+ Add new ignore rule (for ExpChooser) to evaluateRules.
+ modify start rule to include ExpChooser.
+ Remove ignore rule on number of exposures, as it was
  redundant and causing unnecessary DB access.

# RGSOffset            1.01 10-Nov-2000         1.02 10-Jan-2001
+ Change start and ignore rules to key off of ExpChooser.

# ReceiveACDS          1.03 19-Dec-2000         1.04 09-Jan-2001
+ Add ingore option in evaluateRules (skip if SendACDS ignored).

# SendACDS             1.03 14-Dec-2000         1.04 09-Jan-2001
+ Add ignore option to evaluateRules (skip if SrcMerge ignored).

# SendDPSS             1.05 15-Dec-2000         1.06 11-Jan-2001
+ Check for existence of input event lists.

# SrcMerge             1.01 28-Nov-2000         1.04 16-Jan-2001
+ Change ignore conditions evaluateRules (skip if ExpDetect ignored).
+ Test for existence of source list file before trying to
  use it.
+ Remove ignore rule on number of exposures, as it was 
  redundant and causing unnecessary DB access.

# StampKeywords        1.02 19-Dec-2000         1.03 09-Jan-2001
+ Rewrite evaluateRules to account for some modules being
  ignored, and remove redundancies.

# pnEvents             1.38 19-Dec-2000         1.41 19-Jan-2001
+ Add InstrumentHK to start rule.
+ Remove GlobalHK from ignore rule.
+ hicolthesh values for the two calls to badpixfind
  were not set correctly.  In particular, value for the
  standard call was off by a factor of 10.  Values now
  set as per Andy Read's email dated 13-Dec-2000.
+ Change narrowerthanpsf parameter in standard call
  to badpixfind from 1.25 to 1.5.

One PCMS parameter is changing, this is the number of modules that may run
simultaneously in the pipeline.

# Parameters
# ----------
# QueueManager.execLimit         8                   6