ASTROSAT CZTI

Data Quality Report

Orbit 07802

Creation date: 2024-06-27T15:24:12.165129
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/AS1G06_032T01_9000001074_07802cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07802cztM0_level2_quad_clean.evt
Size (bytes)446,042,880104,238,720
Size425.4 MB 99.4 MB
Events in quadrant A3,006,917678,829
Events in quadrant B3,215,024706,122
Events in quadrant C3,757,768674,597
Events in quadrant D3,092,417649,596

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131843
B0136302
C0153722
D0136482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6412640.998129%
B6412921.434810%
C64122654.132876%
D6412570.888958%

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 7637 6413 1 1 0.01% 0.02%
B 7637 6413 24 24 0.31% 0.37%
C 7637 6412 129 129 1.69% 2.01%
D 7637 6412 10 10 0.13% 0.16%

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 0 226 7344 42.11 779 763 156.3
A 12 194 6814 38.72 779 763 156.3
A 13 248 5640 31.2 779 763 156.3
B 5 6 71774 483.66 788 772 146.8
B 4 239 33247 221.22 788 772 146.8
B 0 214 28256 187.22 788 772 146.8
C 4 254 735433 4188.49 766 770 175.4
C 1 16 12179 65.05 766 770 175.4
C 12 4 10331 54.51 766 770 175.4
D 2 152 109501 588.26 770 749 184.9
D 2 14 62911 336.25 770 749 184.9
D 2 234 17728 91.84 770 749 184.9

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