ASTROSAT CZTI

Data Quality Report

Orbit 00724

Creation date: 2024-06-27T14:02:04.902909
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/AS1P01_147T01_9000000106_00724cztM0_level2.evt modeM0/AS1P01_147T01_9000000106_00724cztM0_level2_quad_clean.evt
Size (bytes)657,472,32040,674,240
Size627.0 MB 38.8 MB
Events in quadrant A4,919,062234,862
Events in quadrant B5,027,535239,489
Events in quadrant C4,698,770232,772
Events in quadrant D4,981,294223,279

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176320
B0179700
C0170130
D0178050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A426610.023441%
B426700.000000%
C426730.070307%
D4267431.007734%

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 4266 4266 79 79 1.85% 1.85%
B 4267 4267 60 60 1.41% 1.41%
C 4267 4267 39 39 0.91% 0.91%
D 4267 4267 158 158 3.70% 3.70%

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 12 133 78175 253.65 1257 1268 303.2
A 12 189 8359 23.39 1257 1268 303.2
A 13 8 6052 15.78 1257 1268 303.2
B 4 232 27047 83.98 1309 1319 306.4
B 0 220 15845 47.42 1309 1319 306.4
B 0 207 8674 24.01 1309 1319 306.4
C 9 52 30497 90.0 1179 1222 325.3
C 15 241 25205 73.73 1179 1222 325.3
C 3 111 18643 53.56 1179 1222 325.3
D 6 226 516369 1488.42 1120 1160 346.1
D 14 52 84110 239.64 1120 1160 346.1
D 9 52 53257 150.51 1120 1160 346.1

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