ASTROSAT CZTI

Data Quality Report

Orbit 03352

Creation date: 2024-06-27T14:27:55.182805
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_112T01_9000000452_03352cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03352cztM0_level2_quad_clean.evt
Size (bytes)551,741,76081,768,960
Size526.2 MB 78.0 MB
Events in quadrant A3,670,927493,923
Events in quadrant B4,272,982486,888
Events in quadrant C4,301,747475,535
Events in quadrant D3,925,495468,221

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163743
B0178872
C0181412
D0174832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79331181.487457%
B79331271.600908%
C79332112.659776%
D79331531.928652%

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 9458 7935 1 1 0.01% 0.01%
B 9458 7935 9 9 0.10% 0.11%
C 9458 7935 102 102 1.08% 1.29%
D 9458 7935 68 68 0.72% 0.86%

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 11 11 21121 104.31 938 916 193.7
A 14 249 14457 69.91 938 916 193.7
A 15 174 13227 63.56 938 916 193.7
B 15 204 438550 2360.81 946 923 185.4
B 0 229 66846 355.63 946 923 185.4
B 14 167 43459 229.46 946 923 185.4
C 14 223 467777 2175.38 906 909 214.6
C 12 175 110539 510.82 906 909 214.6
C 6 80 107705 497.62 906 909 214.6
D 13 223 364278 1658.26 904 878 219.1
D 5 233 40332 180.04 904 878 219.1
D 14 34 28561 126.32 904 878 219.1

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