ASTROSAT CZTI

Data Quality Report

Orbit 19934

Creation date: 2024-06-27T18:08:56.867557
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/AS1A05_160T01_9000002970_19934cztM0_level2.evt modeM0/AS1A05_160T01_9000002970_19934cztM0_level2_quad_clean.evt
Size (bytes)578,747,52093,646,080
Size551.9 MB 89.3 MB
Events in quadrant A3,473,773604,667
Events in quadrant B3,771,618605,061
Events in quadrant C4,970,006572,343
Events in quadrant D4,841,223569,690

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147152
B0157192
C0196322
D0190712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6947961.381891%
B69471892.720599%
C69483565.123777%
D69482093.008060%

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 8907 6948 0 0 0.00% 0.00%
B 8907 6948 29 29 0.33% 0.42%
C 8908 6948 68 68 0.76% 0.98%
D 8908 6948 74 74 0.83% 1.07%

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 3 1 25720 137.18 891 873 181.1
A 5 16 19893 105.01 891 873 181.1
A 0 226 7676 37.56 891 873 181.1
B 7 220 174500 1022.71 887 866 169.8
B 0 189 35818 205.87 887 866 169.8
B 0 197 24986 142.07 887 866 169.8
C 3 233 801514 4031.43 849 855 198.6
C 4 254 538156 2705.39 849 855 198.6
C 9 221 142355 712.47 849 855 198.6
D 1 52 1445177 6834.55 864 839 211.3
D 7 38 93746 439.63 864 839 211.3
D 2 234 39917 184.92 864 839 211.3

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