ASTROSAT CZTI

Data Quality Report

Orbit 16213

Creation date: 2024-06-27T17:19:25.008332
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/AS1T02_109T01_9000002386_16213cztM0_level2.evt modeM0/AS1T02_109T01_9000002386_16213cztM0_level2_quad_clean.evt
Size (bytes)551,280,96068,135,040
Size525.7 MB 65.0 MB
Events in quadrant A5,043,070399,035
Events in quadrant B3,723,268410,276
Events in quadrant C3,686,202394,315
Events in quadrant D3,786,629389,957

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192273
B0150642
C0148052
D0155672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A673368710.203475%
B67331121.663449%
C67331662.465469%
D67331111.648596%

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 7799 6735 435 435 5.58% 6.46%
B 7799 6735 2 2 0.03% 0.03%
C 7799 6735 22 22 0.28% 0.33%
D 7799 6735 30 30 0.38% 0.45%

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 15 174 1620907 9436.56 853 836 171.7
A 4 2 90440 521.92 853 836 171.7
A 0 253 23144 129.94 853 836 171.7
B 3 64 135810 814.54 870 848 165.7
B 0 198 83227 497.19 870 848 165.7
B 0 189 29728 174.3 870 848 165.7
C 7 247 154305 794.5 835 841 193.2
C 14 238 129954 668.43 835 841 193.2
C 0 207 116004 596.21 835 841 193.2
D 1 52 336213 1597.6 857 833 209.9
D 2 233 108764 514.13 857 833 209.9
D 15 0 54199 254.21 857 833 209.9

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