ASTROSAT CZTI

Data Quality Report

Orbit 23593

Creation date: 2024-06-27T18:56:34.305039
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/AS1A07_054T01_9000003486_23593cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23593cztM0_level2_quad_clean.evt
Size (bytes)483,459,840138,502,080
Size461.1 MB 132.1 MB
Events in quadrant A3,192,559960,156
Events in quadrant B3,469,303984,235
Events in quadrant C3,411,961911,912
Events in quadrant D4,124,265883,327

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135912
B0144652
C0142822
D0166272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6528160.245098%
B6528530.811887%
C65281742.665441%
D65281041.593137%

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 7848 6529 0 0 0.00% 0.00%
B 7848 6528 13 13 0.17% 0.20%
C 7848 6528 89 89 1.13% 1.36%
D 7848 6529 55 55 0.70% 0.84%

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 6 16 30401 181.68 819 806 162.9
A 13 254 11342 64.68 819 806 162.9
A 0 226 7018 38.13 819 806 162.9
B 0 189 159367 1058.64 823 804 149.8
B 3 64 22225 143.01 823 804 149.8
B 12 111 17563 111.89 823 804 149.8
C 0 10 250276 1405.24 774 779 177.5
C 14 238 127868 715.8 774 779 177.5
C 7 247 9570 49.51 774 779 177.5
D 7 223 565106 3022.6 778 758 186.7
D 1 52 478235 2557.32 778 758 186.7
D 13 174 62628 331.37 778 758 186.7

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