ASTROSAT CZTI

Data Quality Report

Orbit 05100

Creation date: 2024-06-27T14:51:19.715949
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/AS1G05_105T01_9000000644_05100cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05100cztM0_level2_quad_clean.evt
Size (bytes)638,285,76094,541,760
Size608.7 MB 90.2 MB
Events in quadrant A3,510,245620,640
Events in quadrant B3,801,976621,225
Events in quadrant C3,367,774591,464
Events in quadrant D8,136,393501,620

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159162
B0165291
C0156141
D0294471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75841171.542722%
B75841562.056962%
C7584931.226266%
D7584165621.835443%

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 7759 7585 11 11 0.14% 0.15%
B 7759 7585 26 26 0.34% 0.34%
C 7759 7585 0 0 0.00% 0.00%
D 7759 7585 1146 1146 14.77% 15.11%

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 0 50 44027 238.37 880 860 181.1
A 13 251 38827 209.65 880 860 181.1
A 0 247 22499 119.49 880 860 181.1
B 4 80 142663 822.92 888 866 172.3
B 10 16 106146 610.99 888 866 172.3
B 15 204 55250 315.62 888 866 172.3
C 8 128 16193 77.43 853 854 198.1
C 8 112 7886 35.5 853 854 198.1
C 13 61 6971 30.88 853 854 198.1
D 12 22 2683562 14086.98 775 750 190.4
D 13 239 1418033 7441.9 775 750 190.4
D 13 235 549842 2883.19 775 750 190.4

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