ASTROSAT CZTI

Data Quality Report

Orbit 45436

Creation date: 2024-06-27T23:11:38.803494
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/AS1A13_023T05_9000006062_45436cztM0_level2.fits modeM0/AS1A13_023T05_9000006062_45436cztM0_level2_quad_clean.evt
Size (bytes)558,740,160122,904,000
Size532.9 MB 117.2 MB
Events in quadrant A6,903,049794,468
Events in quadrant B3,921,818844,391
Events in quadrant C3,701,568817,092
Events in quadrant D5,553,878725,152

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258440
B0169260
C0166300
D0217550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77693674.723903%
B77701001.287001%
C7770460.592021%
D77702673.436293%

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 7769 7769 265 265 3.41% 3.41%
B 7770 7770 18 18 0.23% 0.23%
C 7770 7770 34 34 0.44% 0.44%
D 7770 7770 218 218 2.81% 2.81%

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 10 83 2800441 15352.85 869 849 182.3
A 13 248 646635 3541.47 869 849 182.3
A 9 191 64325 348.1 869 849 182.3
B 0 171 161111 924.13 878 850 173.4
B 8 234 60585 344.46 878 850 173.4
B 15 35 51774 293.65 878 850 173.4
C 14 254 141311 685.41 866 870 204.9
C 0 239 92431 446.85 866 870 204.9
C 12 2 42048 200.96 866 870 204.9
D 1 52 1320732 6016.45 855 826 219.4
D 13 249 270584 1229.62 855 826 219.4
D 11 241 175690 797.07 855 826 219.4

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