ASTROSAT CZTI

Data Quality Report

Orbit 24229

Creation date: 2024-06-27T19:03:44.551010
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/AS1A07_118T01_9000003586_24229cztM0_level2.evt modeM0/AS1A07_118T01_9000003586_24229cztM0_level2_quad_clean.evt
Size (bytes)479,975,040113,192,640
Size457.7 MB 107.9 MB
Events in quadrant A3,304,980752,517
Events in quadrant B3,389,073785,167
Events in quadrant C3,461,341746,582
Events in quadrant D3,956,871708,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138202
B0141022
C0141612
D0159192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6246420.672430%
B6246631.008646%
C6246901.440922%
D62461943.105988%

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 7541 6247 7 7 0.09% 0.11%
B 7541 6246 12 12 0.16% 0.19%
C 7541 6247 2 2 0.03% 0.03%
D 7541 6246 151 151 2.00% 2.42%

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 3 1 36852 216.78 839 824 166.2
A 6 16 34573 203.07 839 824 166.2
A 13 254 11282 62.93 839 824 166.2
B 12 17 36116 222.01 848 830 158.9
B 12 111 18104 108.69 848 830 158.9
B 11 111 15975 95.29 848 830 158.9
C 14 238 132851 688.51 822 833 191.7
C 2 16 62185 319.97 822 833 191.7
C 7 247 60999 313.78 822 833 191.7
D 7 38 337386 1707.11 815 795 197.2
D 7 238 225371 1139.0 815 795 197.2
D 12 233 163196 823.66 815 795 197.2

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