ASTROSAT CZTI

Data Quality Report

Orbit 32296

Creation date: 2024-06-27T20:38:33.738266
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_005T01_9000004700_32296cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32296cztM0_level2_quad_clean.evt
Size (bytes)618,840,00081,944,640
Size590.2 MB 78.1 MB
Events in quadrant A3,423,315539,839
Events in quadrant B5,540,362514,109
Events in quadrant C3,769,499473,788
Events in quadrant D5,554,379485,188

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143123
B0211382
C0152942
D0211332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6713761.132132%
B67131592.368539%
C67131842.740950%
D67131752.606882%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7773 6714 1 1 0.01% 0.01%
B 7773 6714 12 12 0.15% 0.18%
C 7773 6714 35 35 0.45% 0.52%
D 7773 6714 83 83 1.07% 1.24%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 96 33002 184.45 870 855 174.3
A 13 6 22190 122.41 870 855 174.3
A 13 254 15357 83.21 870 855 174.3
B 6 159 1910165 11735.75 856 834 162.7
B 0 190 129966 793.71 856 834 162.7
B 5 172 49509 299.18 856 834 162.7
C 0 10 179144 935.28 816 824 190.7
C 3 233 171887 897.21 816 824 190.7
C 14 238 137495 716.83 816 824 190.7
D 8 195 1872704 9365.67 828 809 199.9
D 14 52 202337 1008.31 828 809 199.9
D 13 249 134985 671.32 828 809 199.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter