ASTROSAT CZTI

Data Quality Report

Orbit 12566

Creation date: 2024-06-27T16:29:18.862489
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/AS1C03_021T01_9000001864_12566cztM0_level2.evt modeM0/AS1C03_021T01_9000001864_12566cztM0_level2_quad_clean.evt
Size (bytes)500,040,00095,112,000
Size476.9 MB 90.7 MB
Events in quadrant A3,585,132593,847
Events in quadrant B3,902,695607,767
Events in quadrant C3,451,142598,430
Events in quadrant D3,706,043569,264

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156753
B0165492
C0153022
D0161362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73431031.402696%
B73431982.696446%
C7343490.667302%
D7343851.157565%

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 9344 7347 4 4 0.04% 0.05%
B 9344 7346 50 50 0.54% 0.68%
C 9344 7347 0 0 0.00% 0.00%
D 9344 7347 28 28 0.30% 0.38%

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 9 143 36406 192.72 903 884 184.3
A 12 189 23555 123.0 903 884 184.3
A 12 96 18454 95.32 903 884 184.3
B 4 239 246165 1401.32 906 885 175.0
B 11 51 50540 283.69 906 885 175.0
B 3 209 45968 257.57 906 885 175.0
C 13 61 6328 26.33 883 888 206.6
C 0 15 3192 11.15 883 888 206.6
C 14 67 2657 8.56 883 888 206.6
D 1 52 180151 854.56 873 851 209.8
D 8 195 62836 295.43 873 851 209.8
D 7 223 55307 259.54 873 851 209.8

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