ASCA Sequence 31001000 Event File Info

This page lists the filtered and unfiltered event files sorted by instrument and mode. Exposure times (not dead time corrected) and count rates are given for each file along with a list of FITS keywords describing the observation mode. Where two values are separated by a slash, the first value refers to the filtered event file and the second to the corresponding unfiltered file.

The following information is also available:

The processing header page

Here is in index of the event files for each instrument:

SIS 0
SIS 1
GIS 2
GIS 3

SIS0:

Total Exposure: 10.6 / 29.3 kiloseconds
Total Events: 3289 / 91446 events
Mean Count Rate: 0.31 / 3.121 events per second
Number of Files: 3 / 4

SIS0 BRIGHT mode event files with HIGH bit rate

ad31001000s000102h.evt / ad31001000s000102h.unf
- Exposure: 5.3 / 11.6 kiloseconds
- Events: 1622 / 34366 events
- Count Rate: 0.305 / 2.962 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 0 / S0 Area discrimination enable/disable
ad31001000s000302h.unf
- Exposure: 0 / 2.1 kiloseconds
- Events: 0 / 11036 events
- Count Rate: 0 / 5.138 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 1 / S0 Area discrimination enable/disable

SIS0 BRIGHT mode event files with MEDIUM bit rate

ad31001000s000202m.evt / ad31001000s000202m.unf
- Exposure: 4.9 / 10.9 kiloseconds
- Events: 1531 / 30842 events
- Count Rate: 0.311 / 2.82 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 0 / S0 Area discrimination enable/disable
ad31001000s000402m.evt / ad31001000s000402m.unf
- Exposure: 0.4 / 4.6 kiloseconds
- Events: 136 / 15202 events
- Count Rate: 0.364 / 3.296 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 1 / S0 Area discrimination enable/disable

SIS0 BRIGHT2 mode event files with HIGH bit rate

ad31001000s000112h.evt / ad31001000s000112h.unf
- Exposure: 5.3 / 11.6 kiloseconds
- Events: 1656 / 35583 events
- Count Rate: 0.312 / 3.067 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 0 / S0 Area discrimination enable/disable
ad31001000s000312h.unf
- Exposure: 0 / 2.1 kiloseconds
- Events: 0 / 11670 events
- Count Rate: 0 / 5.433 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 1 / S0 Area discrimination enable/disable

SIS0 BRIGHT2 mode event files with MEDIUM bit rate

ad31001000s000512m.evt / ad31001000s000512m.unf
- Exposure: 0.1 / 0.6 kiloseconds
- Events: 43 / 1064 events
- Count Rate: 0.287 / 1.818 events per second
- Selected FITS Keywords:

SIS0 FAINT mode event files with HIGH bit rate

ad31001000s000101h.unf
- Exposure: 0 / 11.6 kiloseconds
- Events: 0 / 69135 events
- Count Rate: 0 / 5.958 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 0 / S0 Area discrimination enable/disable
ad31001000s000301h.unf
- Exposure: 0 / 2.1 kiloseconds
- Events: 0 / 16647 events
- Count Rate: 0 / 7.75 events per second
- Selected FITS Keywords:
  
  S0_ARENA= 1 / S0 Area discrimination enable/disable

SIS0 FAINT mode event files with MEDIUM bit rate

ad31001000s000501m.unf
- Exposure: 0 / 0.6 kiloseconds
- Events: 0 / 4098 events
- Count Rate: 0 / 7.002 events per second
- Selected FITS Keywords:

SIS1:

Total Exposure: 10.7 / 30 kiloseconds
Total Events: 3322 / 179460 events
Mean Count Rate: 0.31 / 5.99 events per second
Number of Files: 3 / 3

SIS1 BRIGHT mode event files with HIGH bit rate

ad31001000s100102h.evt / ad31001000s100102h.unf
- Exposure: 5.4 / 13.8 kiloseconds
- Events: 1629 / 84765 events
- Count Rate: 0.3 / 6.161 events per second
- Selected FITS Keywords:

SIS1 BRIGHT mode event files with MEDIUM bit rate

ad31001000s100202m.evt / ad31001000s100202m.unf
- Exposure: 5.2 / 15.6 kiloseconds
- Events: 1647 / 92327 events
- Count Rate: 0.318 / 5.934 events per second
- Selected FITS Keywords:
  
  ORIGMODE= BRIGHT / DATAMODE before any conversion
ad31001000s100302m.evt / ad31001000s100302m.unf
- Exposure: 0.1 / 0.6 kiloseconds
- Events: 46 / 2368 events
- Count Rate: 0.413 / 3.683 events per second
- Selected FITS Keywords:
  
  ORIGMODE= FAINT / DATAMODE before any conversion

SIS1 BRIGHT2 mode event files with HIGH bit rate

ad31001000s100112h.evt / ad31001000s100112h.unf
- Exposure: 5.4 / 13.8 kiloseconds
- Events: 1657 / 88266 events
- Count Rate: 0.305 / 6.415 events per second
- Selected FITS Keywords:

SIS1 BRIGHT2 mode event files with MEDIUM bit rate

ad31001000s100312m.evt / ad31001000s100312m.unf
- Exposure: 0.1 / 0.6 kiloseconds
- Events: 46 / 2538 events
- Count Rate: 0.413 / 3.947 events per second
- Selected FITS Keywords:

SIS1 FAINT mode event files with HIGH bit rate

ad31001000s100101h.unf
- Exposure: 0 / 13.8 kiloseconds
- Events: 0 / 125879 events
- Count Rate: 0 / 9.149 events per second
- Selected FITS Keywords:

SIS1 FAINT mode event files with MEDIUM bit rate

ad31001000s100301m.unf
- Exposure: 0 / 0.6 kiloseconds
- Events: 0 / 5025 events
- Count Rate: 0 / 7.815 events per second
- Selected FITS Keywords:

GIS2:

Total Exposure: 19.8 / 26.1 kiloseconds
Total Events: 7415 / 31678 events
Mean Count Rate: 0.375 / 1.215 events per second
Number of Files: 4 / 4

GIS2 PH mode event files with HIGH bit rate

ad31001000g200270h.evt / ad31001000g200270h.unf

Exposure: 3.5 / 3.5 kiloseconds
Events: 2039 / 8218 events
Count Rate: 0.581 / 2.341 events per second

Selected FITS Keywords:

CPU2=	RUN	/ CPU2 run/stop
CPU_SEL=	CPU2	/ CPU selection (CPU2/CPU3)
RT_B_CD=	0	/ Rise time bit condense (0 - 3)
ANO_TUNE=	OFF	/ Anode gain tuning (on/off)
POS_DET=	POW2	/ Position determination method (FLF/POW2)
S_DSCR=	OFF	/ Spread discriminator (on/off)
PH_EVENT=	11000001	/ PHevent sel(AAF,AAL0,EDGE,M1,COUT,DOUT,M2,XRAY)
CETR_X_F=	120	/ X-position center for FLF method (0-255)
CETR_Y_F=	120	/ Y-position center for FLF method (0-255)
SP_A_L_F=	0	/ Spread discri A_L for FLF method (0-255)
SP_A_U_F=	255	/ Spread discri A_U for FLF method (0-255)
SP_B_F=	0	/ Spread discri B for FLF method (0-255)

ad31001000g200370h.evt / ad31001000g200370h.unf

Exposure: 5.8 / 7.9 kiloseconds
Events: 1881 / 7850 events
Count Rate: 0.324 / 0.991 events per second

Selected FITS Keywords:

CPU2=	STOP	/ CPU2 run/stop
CPU_SEL=	CPU3	/ CPU selection (CPU2/CPU3)
RT_B_CD=	1	/ Rise time bit condense (0 - 3)
ANO_TUNE=	ON	/ Anode gain tuning (on/off)
POS_DET=	FLF	/ Position determination method (FLF/POW2)
S_DSCR=	ON	/ Spread discriminator (on/off)
PH_EVENT=	00000001	/ PHevent sel(AAF,AAL0,EDGE,M1,COUT,DOUT,M2,XRAY)
CETR_X_F=	121	/ X-position center for FLF method (0-255)
CETR_Y_F=	122	/ Y-position center for FLF method (0-255)
SP_A_L_F=	80	/ Spread discri A_L for FLF method (0-255)
SP_A_U_F=	239	/ Spread discri A_U for FLF method (0-255)
SP_B_F=	226	/ Spread discri B for FLF method (0-255)

ad31001000g200470h.evt / ad31001000g200470h.unf

Exposure: 2.1 / 2.1 kiloseconds
Events: 666 / 1938 events
Count Rate: 0.312 / 0.901 events per second

Selected FITS Keywords:

CPU2=	RUN	/ CPU2 run/stop
CPU_SEL=	CPU2	/ CPU selection (CPU2/CPU3)
RT_B_CD=	1	/ Rise time bit condense (0 - 3)
ANO_TUNE=	ON	/ Anode gain tuning (on/off)
POS_DET=	FLF	/ Position determination method (FLF/POW2)
S_DSCR=	ON	/ Spread discriminator (on/off)
PH_EVENT=	00000001	/ PHevent sel(AAF,AAL0,EDGE,M1,COUT,DOUT,M2,XRAY)
CETR_X_F=	121	/ X-position center for FLF method (0-255)
CETR_Y_F=	122	/ Y-position center for FLF method (0-255)
SP_A_L_F=	80	/ Spread discri A_L for FLF method (0-255)
SP_A_U_F=	239	/ Spread discri A_U for FLF method (0-255)
SP_B_F=	226	/ Spread discri B for FLF method (0-255)

GIS2 PH mode event files with MEDIUM bit rate

ad31001000g200170m.evt / ad31001000g200170m.unf
- Exposure: 8.3 / 12.5 kiloseconds
- Events: 2829 / 13672 events
- Count Rate: 0.341 / 1.094 events per second
- Selected FITS Keywords:

GIS3:

Total Exposure: 19.9 / 26.3 kiloseconds
Total Events: 7205 / 25300 events
Mean Count Rate: 0.361 / 0.964 events per second
Number of Files: 3 / 3

GIS3 PH mode event files with HIGH bit rate

ad31001000g300270h.evt / ad31001000g300270h.unf
- Exposure: 5.8 / 7.9 kiloseconds
- Events: 2067 / 7422 events
- Count Rate: 0.356 / 0.937 events per second
- Selected FITS Keywords:
  
  CPU2= STOP / CPU2 run/stop
  
  CPU_SEL= CPU2 / CPU selection (CPU2/CPU3)
ad31001000g300370h.evt / ad31001000g300370h.unf
- Exposure: 5.8 / 5.8 kiloseconds
- Events: 2130 / 5336 events
- Count Rate: 0.366 / 0.914 events per second
- Selected FITS Keywords:
  
  CPU2= RUN / CPU2 run/stop
  
  CPU_SEL= CPU3 / CPU selection (CPU2/CPU3)

GIS3 PH mode event files with MEDIUM bit rate

ad31001000g300170m.evt / ad31001000g300170m.unf
- Exposure: 8.3 / 12.5 kiloseconds
- Events: 3008 / 12542 events
- Count Rate: 0.362 / 1.004 events per second
- Selected FITS Keywords: