ASTROSAT CZTI

Data Quality Report

Orbit 06532

Creation date: 2024-06-27T15:08:37.739940
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/AS1G06_134T06_9000000878_06532cztM0_level2.evt modeM0/AS1G06_134T06_9000000878_06532cztM0_level2_quad_clean.evt
Size (bytes)594,792,00084,893,760
Size567.2 MB 81.0 MB
Events in quadrant A3,982,145511,696
Events in quadrant B4,070,238510,186
Events in quadrant C3,649,835510,418
Events in quadrant D5,771,142485,643

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171442
B0173981
C0165431
D0226981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79543013.784259%
B79543454.337440%
C79541401.760121%
D795490711.403068%

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 7979 7955 9 9 0.11% 0.11%
B 7979 7955 36 36 0.45% 0.45%
C 7979 7955 0 0 0.00% 0.00%
D 7979 7955 703 703 8.81% 8.84%

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 8 15 142734 729.76 943 919 194.3
A 15 236 94543 481.77 943 919 194.3
A 14 111 92287 470.17 943 919 194.3
B 0 219 126359 687.12 945 921 182.6
B 15 85 68326 369.23 945 921 182.6
B 4 81 40209 215.21 945 921 182.6
C 8 128 19757 87.7 920 923 214.8
C 9 54 11403 48.8 920 923 214.8
C 1 16 9738 41.05 920 923 214.8
D 13 169 1896274 8536.62 899 870 222.0
D 12 233 126928 567.75 899 870 222.0
D 2 152 80139 357.02 899 870 222.0

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