ASTROSAT CZTI

Data Quality Report

Orbit 03252

Creation date: 2024-06-27T14:26:44.965132
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/AS1G05_104T01_9000000440_03252cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03252cztM0_level2_quad_clean.evt
Size (bytes)489,084,48084,882,240
Size466.4 MB 81.0 MB
Events in quadrant A2,947,134543,470
Events in quadrant B4,259,801540,487
Events in quadrant C3,180,591525,958
Events in quadrant D3,980,293504,186

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134383
B0171592
C0141172
D0168502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6545180.275019%
B6545510.779221%
C6545430.656990%
D65452273.468296%

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 7570 6546 9 9 0.12% 0.14%
B 7570 6546 2 2 0.03% 0.03%
C 7570 6546 18 18 0.24% 0.27%
D 7570 6546 236 236 3.12% 3.61%

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 0 118 52910 338.52 743 731 154.1
A 0 50 22267 139.72 743 731 154.1
A 0 226 12653 77.35 743 731 154.1
B 15 204 1291794 8742.23 760 743 147.7
B 0 229 19730 128.57 760 743 147.7
B 5 200 12288 78.18 760 743 147.7
C 14 223 210931 1249.37 717 722 168.3
C 6 80 109184 644.64 717 722 168.3
C 12 175 33179 192.91 717 722 168.3
D 13 114 774713 4477.54 703 681 172.9
D 13 223 465046 2686.21 703 681 172.9
D 9 85 48967 279.32 703 681 172.9

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