ASTROSAT CZTI

Data Quality Report

Orbit 29212

Creation date: 2024-06-27T20:01:35.492177
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/AS1A10_102T02_9000004200_29212cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29212cztM0_level2_quad_clean.evt
Size (bytes)583,911,36081,869,760
Size556.9 MB 78.1 MB
Events in quadrant A3,153,359523,727
Events in quadrant B3,394,631529,513
Events in quadrant C5,321,661504,273
Events in quadrant D5,398,912493,175

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131131
B0137991
C0201771
D0202212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61351081.760391%
B61361702.770535%
C61365088.279009%
D613574712.176039%

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 7305 6137 0 0 0.00% 0.00%
B 7306 6138 11 11 0.15% 0.18%
C 7306 6138 102 102 1.40% 1.66%
D 7305 6137 426 426 5.83% 6.94%

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 0 13 25535 154.14 808 792 160.5
A 13 254 12768 74.61 808 792 160.5
A 3 137 7502 41.8 808 792 160.5
B 0 229 94610 636.78 798 779 147.4
B 10 245 71231 478.12 798 779 147.4
B 0 183 65876 441.78 798 779 147.4
C 3 233 2165024 12370.97 768 775 174.9
C 14 238 128771 731.63 768 775 174.9
C 2 114 14867 80.55 768 775 174.9
D 1 52 1818185 10315.06 742 722 176.2
D 8 195 595780 3377.27 742 722 176.2
D 2 250 40942 228.27 742 722 176.2

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