ASTROSAT CZTI

Data Quality Report

Orbit 05263

Creation date: 2024-06-27T14:53:16.261754
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_240T02_9000000670_05263cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05263cztM0_level2_quad_clean.evt
Size (bytes)2,515,590,720320,575,680
Size2.3 GB 305.7 MB
Events in quadrant A14,928,8691,984,769
Events in quadrant B14,334,4121,986,706
Events in quadrant C13,842,3571,948,402
Events in quadrant D31,048,4691,718,304

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06160
B06160
C06162
D06164

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0312

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065600130
B063220171
C062472155
D0113758690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A301297982.648611%
B301095801.926334%
C301154151.378051%
D30048599319.944755%

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 33283 30194 170 170 0.51% 0.56%
B 33283 30195 6 6 0.02% 0.02%
C 33283 30193 1 1 0.00% 0.00%
D 33282 30168 4430 4430 13.31% 14.68%

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 13 251 1116325 1563.8 3498 3415 711.7
A 0 50 318656 442.96 3498 3415 711.7
A 12 194 34577 43.79 3498 3415 711.7
B 15 54 141918 203.71 3542 3461 679.7
B 4 48 139027 199.46 3542 3461 679.7
B 15 204 130965 187.6 3542 3461 679.7
C 1 16 403843 504.69 3420 3435 793.4
C 13 61 27678 30.56 3420 3435 793.4
C 7 159 27094 29.82 3420 3435 793.4
D 11 145 15481640 20000.79 3117 3020 773.9
D 2 136 1566906 2020.78 3117 3020 773.9
D 1 31 947345 1220.22 3117 3020 773.9

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