ASTROSAT CZTI

Data Quality Report

Orbit 32236

Creation date: 2024-06-27T20:37:55.800735
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/AS1T04_054T01_9000004694_32236cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32236cztM0_level2_quad_clean.evt
Size (bytes)601,548,480101,050,560
Size573.7 MB 96.4 MB
Events in quadrant A3,211,372686,090
Events in quadrant B5,640,902687,976
Events in quadrant C4,053,893639,528
Events in quadrant D4,897,588618,586

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132822
B0209374
C0159972
D0187562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6133380.619599%
B61322794.549902%
C61324136.735160%
D61321382.250489%

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 7469 6135 1 1 0.01% 0.02%
B 7468 6134 96 96 1.29% 1.57%
C 7468 6134 137 137 1.83% 2.23%
D 7468 6134 88 88 1.18% 1.43%

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 15 174 20888 123.54 818 804 162.6
A 13 6 17456 102.43 818 804 162.6
A 13 254 11492 65.74 818 804 162.6
B 6 159 1704821 11278.19 814 794 151.1
B 4 80 631722 4175.83 814 794 151.1
B 0 229 41811 271.47 814 794 151.1
C 0 10 569016 3172.31 775 783 179.1
C 3 233 166670 926.11 775 783 179.1
C 14 238 166152 923.21 775 783 179.1
D 8 195 1491462 7933.99 783 764 187.9
D 12 233 214828 1139.32 783 764 187.9
D 2 250 104019 549.56 783 764 187.9

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