ASTROSAT CZTI

Data Quality Report

Orbit 10152

Creation date: 2024-06-27T15:55:41.136976
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/AS1A03_039T01_9000001462_10152cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10152cztM0_level2_quad_clean.evt
Size (bytes)967,481,28085,956,480
Size922.7 MB 82.0 MB
Events in quadrant A4,388,675578,030
Events in quadrant B4,023,893597,939
Events in quadrant C3,223,970600,832
Events in quadrant D17,158,965304,532

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01828923
B01721916
C01520320
D056203102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74733714.964539%
B74731532.047371%
C7470330.441767%
D7466606481.221538%

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 7914 7480 260 260 3.29% 3.48%
B 7914 7480 54 54 0.68% 0.72%
C 7914 7480 0 0 0.00% 0.00%
D 7913 7469 5926 5926 74.89% 79.34%

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 15 223 668190 3915.94 832 817 170.4
A 15 239 337982 1978.38 832 817 170.4
A 8 15 104918 610.83 832 817 170.4
B 4 81 369032 2253.36 852 833 163.4
B 4 239 281435 1717.27 852 833 163.4
B 0 214 22171 130.59 852 833 163.4
C 14 67 11377 54.85 824 826 192.4
C 13 61 6285 28.38 824 826 192.4
C 3 202 1997 6.09 824 826 192.4
D 1 52 13550164 122376.96 460 446 110.7
D 4 95 458737 4139.15 460 446 110.7
D 12 33 367927 3318.98 460 446 110.7

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