ASTROSAT CZTI

Data Quality Report

Orbit 24286

Creation date: 2024-06-27T19:04:21.270320
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_047T08_9000003590_24286cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24286cztM0_level2_quad_clean.evt
Size (bytes)552,700,800129,968,640
Size527.1 MB 123.9 MB
Events in quadrant A3,076,572912,710
Events in quadrant B3,219,419924,117
Events in quadrant C3,532,796865,051
Events in quadrant D6,484,082795,802

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131692
B0135452
C0146952
D0236064

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6284230.366009%
B6284821.304901%
C6284781.241248%
D628368310.870603%

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 7464 6284 0 0 0.00% 0.00%
B 7464 6284 20 20 0.27% 0.32%
C 7464 6284 2 2 0.03% 0.03%
D 7463 6283 615 615 8.24% 9.79%

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 13 254 10133 58.7 798 785 159.2
A 3 137 6916 38.5 798 785 159.2
A 0 226 6746 37.43 798 785 159.2
B 12 17 70310 476.92 795 778 145.8
B 15 33 29854 199.43 795 778 145.8
B 12 111 17373 113.82 795 778 145.8
C 7 247 335697 1926.97 758 763 173.8
C 14 238 124514 711.98 758 763 173.8
C 2 16 113944 651.16 758 763 173.8
D 1 52 2316074 13132.03 734 712 176.3
D 8 195 1070238 6066.03 734 712 176.3
D 1 239 121687 686.13 734 712 176.3

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