Index: trunk/ippconfig/simtest/format.config
===================================================================
--- trunk/ippconfig/simtest/format.config	(revision 36375)
+++ trunk/ippconfig/simtest/format.config	(revision 41273)
@@ -4,5 +4,5 @@
 RULE	METADATA
 	INSTRUME	STR	SIMTEST
-	TELESCOP	STR	SimScope
+	TELESCOP	STR	SimScope1
 #	NAXIS		S32	2
 END
@@ -32,5 +32,6 @@
 	FPA.TELESCOPE	STR	TELESCOP
 	FPA.INSTRUMENT	STR	INSTRUME
-	FPA.OBSTYPE	STR	OBSTYPE
+#FPA.OBSTYPE	STR	OBSTYPE
+	FPA.OBSTYPE	STR	OBS-TYPE
 	FPA.AIRMASS	STR	AIRMASS
         FPA.FILTERID    STR     FILTER
@@ -41,5 +42,7 @@
 	FPA.OBJECT	STR	OBJECT
         FPA.OBS.MODE    STR     OBS_MODE
-	FPA.TIME	STR	DATE-OBS UTC-OBS	# Date and time
+#	FPA.TIME	STR	FOOBIRD			# keyword name does not imply format
+#	FPA.TIME	STR	DATE-OBS UTC-OBS	# Date and time
+	FPA.TIME	STR	MJD-OBS	 		# Date and time
 	FPA.EXPOSURE	STR	EXPTIME
 	FPA.TEMP	STR	DETTEMP
@@ -47,5 +50,6 @@
 	CELL.EXPOSURE	STR	EXPTIME
 	CELL.DARKTIME	STR	DARKTIME
-	CELL.TIME	STR	DATE-OBS UTC-OBS	# Date and time
+#	CELL.TIME	STR	DATE-OBS UTC-OBS	# Date and time
+	CELL.TIME	STR	MJD-OBS	 		# Date and time
 	CELL.XBIN	STR	XBIN
 	CELL.YBIN	STR	YBIN
@@ -54,5 +58,6 @@
 # Default PS concepts that may be specified by value
 DEFAULTS	METADATA
-	FPA.TIMESYS	STR	UTC
+	FPA.TIMESYS	STR	TAI  # valid values: TAI, UTC, UT1, TT (JD, MJD require TAI)
+#	FPA.TIMESYS	STR	UTC  # valid values: TAI, UTC, UT1, TT (JD, MJD require TAI)
 	FPA.RADECSYS	STR	ICRS
 	FPA.DETECTOR	STR	SIMTEST
@@ -63,5 +68,6 @@
 	CELL.BAD	F32	0
 	CELL.READDIR	S32	1
-	CELL.TIMESYS	STR	UTC
+	CELL.TIMESYS	STR	TAI  # valid values: TAI, UTC, UT1, TT (JD, MJD require TAI)
+#	CELL.TIMESYS	STR	UTC  # valid values: TAI, UTC, UT1, TT (JD, MJD require TAI)
 	CELL.XPARITY	S32	1
 	CELL.YPARITY	S32	1
@@ -83,5 +89,39 @@
 	FPA.RA		STR	HOURS
 	FPA.DEC		STR	DEGREES
-	FPA.TIME	STR	SEPARATE,YEAR.FIRST
-	CELL.TIME	STR	SEPARATE,YEAR.FIRST
+#FPA.TIME	STR	SEPARATE,YEAR.FIRST
+#CELL.TIME	STR	SEPARATE,YEAR.FIRST
+FPA.TIME	STR	MJD
+CELL.TIME	STR	MJD
 END
+
+# note that the time keyword name and format must match that defined in dvo.config
+
+# Notes on Time formats and related:
+
+# TRANSLATION:FPA.TIME : this defines the keywords in the input and output headers which
+#   store the time of observation.  Note: the name of the keywords do not imply anything about the format
+#   Note: if the "separate" style of format is used, two keywords must be supplied (and vice versa)
+
+# DEFAULTS:FPA.TIMESYS : this defines the time system (TAI, UTC, UT1, TT) that the header time represents
+
+# FORMATS:FPA.TIME : this specifies the format in which the time information is written to the header
+#   valid values are:
+#      YYYYMMDD, MMDDYYYY, DDMMYYYY (these define the order of year, month, day in the output)
+#          (note that the output formats have dashes between year, month, day; input formats may have
+#           dashes or slashes)
+#      ISO : e.g., 2010-09-01T00:00:00.000000
+#      YEAR.FIRST (synonym for YYYYMMDD)
+#      USA (synonmy for MMDDYYYY)
+#      BACKWARDS (synonym for DDMMYYYY)
+#      MJD
+#      JD  
+#   optional SEPARATE style: if the FPA.TIME value includes SEPARATE (comma-separated from the rest), then
+#      the date and time will be written to two keywords (date keyword first)
+#      WARNING: if SEPARATE is specified and only 1 keyword supplied, the output will silently ignore
+#       the time output
+#   options PRE2000 style: (comma-separated) : treats year as 2-digit year in 20th century (needed for old headers)
+
+# If FPA.TIME & CELL.TIME are both specified, CELL.TIME will be used
+# If only FPA.TIME is specified, it will be used
+#
+# Simtest output headers have information defined by