ASTROSAT CZTI

Data Quality Report

Orbit 47548

Creation date: 2024-07-13T22:30:06.242333
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/AS1C09_002T01_9000006334_47548cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47548cztM0_level2_quad_clean.evt
Size (bytes)450,256,320101,782,080
Size429.4 MB 97.1 MB
Events in quadrant A6,515,764682,277
Events in quadrant B2,829,308712,784
Events in quadrant C2,642,802683,036
Events in quadrant D4,222,186592,747

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233821
B0123321
C0120931
D0166771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58833455.864355%
B58841252.124405%
C5884681.155676%
D58845098.650578%

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 7098 5883 86 86 1.21% 1.46%
B 7099 5884 13 13 0.18% 0.22%
C 7099 5885 2 2 0.03% 0.03%
D 7099 5884 396 396 5.58% 6.73%

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 3504706 25304.54 677 663 138.5
A 9 191 375953 2710.17 677 663 138.5
A 14 248 10517 71.16 677 663 138.5
B 5 171 29889 225.53 679 658 129.6
B 4 171 25068 188.34 679 658 129.6
B 0 190 23192 173.86 679 658 129.6
C 14 254 19948 125.19 665 668 154.0
C 6 247 11692 71.58 665 668 154.0
C 3 233 9440 56.96 665 668 154.0
D 12 233 1223411 7704.91 644 624 158.7
D 2 165 181181 1137.71 644 624 158.7
D 2 120 87363 546.55 644 624 158.7

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