JEM-X INSTRUMENT CONFIGURATION PAGE

These tables try to be as informative as possible, hence the large number of
notes that go with each. All miscellaneous symbols appearing in the table
refer to notes and footnotes collected at the end of each table. The term
(s)off denotes switch off to the SAFE state of the instruments, not switch off
of the on-board processors.

JEM-X1

^^: Unit reactivated after long dormant period, to check functioning just 
	before Crab calibration in March 2004
# : Onboard software parameter 80
@ : The INTEGRAL Julian Day given here indicates the start of the era with
	the tabulated values
Note 1: Revolutions 8 and 9 had no data-taking activity. Units were switched
	to SAFE (effectively off) while the extent of anode damage was assessed
	
Note 2: Revolution 15, PID=2 was an engineering science window in which the
	effect of different low-level discriminator values was investigated.
	The discriminator values were: 10,7,4,2,1,2.
Note 3: Event rejection criteria updated to increase sensitivity below 8 KeV.
	This will affect the response matrix.
Note 4: High energy cutoff raised to ensure good view of Xe peak, esp. during
	coming Crab calibration
Note 5: During SCO X-1 observation, trigger switch off limit temporarily set to
	30,000
* Version 1 of the PHA energy binning table covers the ADC channel range in an
	even, logarithmic manner as initially envisioned to mirror the energy
	resolution of the detectors. Similarly the amplitude steps of the
	Electronic Calibration (ECAL) procedure were orginally chosen to cover
	the full ADC output evenly.
** Version 2 of the PHA energy binning table concentrates mainly on the lower
	end of the ADC scale, in a logarithmic manner, to give priority to
	the channels that are used with the lowered HV on both units, to
	halt the rate of anode deaths. With the lowered HV and detector gain
	the ECAL procedure also had to be changed to concentrate on the lowest
	ADC output channels.
*** Updated rejection criteria use param #81 as a programmable `up front' value
	of the upper energy limit against which events can be quickly rejected.
	This was introduced to reduce the instrument deadtime.
¤ From Revolution 38 PID 65, the upper level cutoff (max. anode signal + ADC offset)
	is given by onboard software parameter 81
$ Thus far only the nominal calibration collection areas have been used, but these
	are expected to be updated before the next crab calibration

JEM-X2

# : Onboard software parameter 80
@ : The INTEGRAL Julian Day given here indicates the start of the era with
	the tabulated values
Note 1: Revolutions 8 and 9 had no data-taking activity. Units were switched
	SAFE (effectively off) while the extent of anode damage was assessed
Note 2: Revolution 15, PID=2 was an engineering science window in which the
	effect of different low-level discriminator values was investigated.
	The discriminator values were: 10,7,4,2,1,2.
Note 3: Event rejection criteria updated to increase sensitivity below 8 KeV
	This will affect the response matrix.
Note 4: During Rev 134, PID 10 Calibration event collection areas were reduced
	so that all calibration spectral events appeared in the full imaging data.
	This was done so as to closer study the calibration events. This was an
	OMC flat field engineering window.
Note 5: During SCO X-1 observation, trigger switch off limit temporarily set to
	30,000
* Version 1 of the PHA energy binning table covers the ADC channel range in an
	even, logarithmic manner as initially envisioned to mirror the energy
	resolution of the detectors. Similarly the amplitude steps of the
	Electronic Calibration (ECAL) procedure were orginally chosen to cover
	the full ADC output evenly.
** Version 2 of the PHA energy binning table concentrates mainly on the lower
	end of the ADC scale, in a logarithmic manner, to give priority to
	the channels that are used with the lowered HV on both units, to
	halt the rate of anode deaths. With the lowered HV and detector gain
	the ECAL procedure also had to be changed to concentrate on the lowest
	ADC output channels.
*** Updated rejection criteria use param #81 as a programmable `up front' value
	of the upper energy limit against which events can be quickly rejected.
	This was introduced to reduce the instrument deadtime.
¤ From Revolution 38 PID 65, the upper level cutoff (max. anode signal + ADC offset)
	is given by onboard software parameter 81
$ Calibration event collection area configuration is given by param #64. 
	Value 774 indicates the nominal configuration
& This patch changed  switch (s)off conditions during the SCO X-1 observation.
	Changes were performed in NRT and were temporary only. See ESA's
	Mission Report #45 below,  for fuller details
	

ESA'S CONFIGURATION DOCUMENTS