ASTROSAT CZTI

Data Quality Report

Orbit 32120

Creation date: 2024-06-27T20:36:41.591153
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/AS1T04_051T01_9000004686_32120cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32120cztM0_level2_quad_clean.evt
Size (bytes)607,438,08070,067,520
Size579.3 MB 66.8 MB
Events in quadrant A3,386,312439,086
Events in quadrant B6,693,912397,095
Events in quadrant C3,774,505437,146
Events in quadrant D4,129,454422,109

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136031
B0238751
C0151471
D0166601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6097510.836477%
B609874912.282716%
C60982123.476550%
D6098631.033126%

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 7462 6098 0 0 0.00% 0.00%
B 7463 6099 374 374 5.01% 6.13%
C 7463 6099 58 58 0.78% 0.95%
D 7463 6099 6 6 0.08% 0.10%

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 6 14590 80.37 874 861 170.8
A 13 254 10866 58.57 874 861 170.8
A 3 137 7658 39.79 874 861 170.8
B 6 159 1596191 10360.9 836 820 154.0
B 10 245 985918 6397.57 836 820 154.0
B 12 18 526865 3416.32 836 820 154.0
C 0 10 243171 1260.39 846 853 192.3
C 14 238 146451 757.31 846 853 192.3
C 2 16 26906 135.51 846 853 192.3
D 8 195 808886 4099.3 853 832 197.1
D 2 250 39925 198.32 853 832 197.1
D 12 233 39274 195.02 853 832 197.1

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