ASTROSAT CZTI

Data Quality Report

Orbit 45707

Creation date: 2024-06-27T23:15:15.328397
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_028T01_9000006122_45707cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45707cztM0_level2_quad_clean.evt
Size (bytes)452,105,280113,644,800
Size431.2 MB 108.4 MB
Events in quadrant A5,860,609756,970
Events in quadrant B3,477,131785,234
Events in quadrant C3,122,134761,531
Events in quadrant D3,772,261685,825

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211031
B0141973
C0136411
D0154711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64812333.595124%
B64811632.515044%
C6481831.280667%
D64812073.193952%

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 7631 6481 14 14 0.18% 0.22%
B 7631 6481 21 21 0.28% 0.32%
C 7631 6481 17 17 0.22% 0.26%
D 7631 6481 112 112 1.47% 1.73%

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 2735687 17239.37 773 757 158.6
A 13 248 89272 557.94 773 757 158.6
A 4 0 12371 73.2 773 757 158.6
B 3 112 134718 898.51 771 748 149.1
B 0 189 114253 761.25 771 748 149.1
B 5 172 51862 342.81 771 748 149.1
C 1 241 57254 316.97 761 767 178.2
C 0 207 56390 312.13 761 767 178.2
C 9 54 31938 174.91 761 767 178.2
D 13 249 465850 2473.8 762 740 188.0
D 2 249 121751 643.63 762 740 188.0
D 1 52 72975 384.2 762 740 188.0

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