ASTROSAT CZTI

Data Quality Report

Orbit 08699

Creation date: 2024-06-27T15:36:07.305011
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/AS1A03_052T01_9000001208_08699cztM0_level2.evt modeM0/AS1A03_052T01_9000001208_08699cztM0_level2_quad_clean.evt
Size (bytes)438,168,960100,540,800
Size417.9 MB 95.9 MB
Events in quadrant A3,123,012642,755
Events in quadrant B3,253,885670,123
Events in quadrant C3,142,549664,948
Events in quadrant D3,323,543628,805

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133533
B0137432
C0132824
D0141322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6286751.193128%
B62861201.909004%
C6285450.715990%
D6286781.240853%

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 8931 6287 2 2 0.02% 0.03%
B 8931 6286 3 3 0.03% 0.05%
C 8931 6287 0 0 0.00% 0.00%
D 8931 6288 35 35 0.39% 0.56%

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 40180 243.7 796 779 161.7
A 5 16 16497 97.22 796 779 161.7
A 0 226 7358 40.69 796 779 161.7
B 10 16 37593 240.32 812 794 153.1
B 4 173 18853 117.93 812 794 153.1
B 0 230 15831 98.2 812 794 153.1
C 14 234 46027 246.66 793 798 183.4
C 13 61 5999 28.36 793 798 183.4
C 8 222 4018 17.56 793 798 183.4
D 1 52 175816 842.18 777 761 207.9
D 2 152 44206 209.01 777 761 207.9
D 9 64 31813 149.39 777 761 207.9

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