ASTROSAT CZTI

Data Quality Report

Orbit 46963

Creation date: 2024-06-27T23:30:02.100927
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_071T07_9000006290_46963cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46963cztM0_level2_quad_clean.evt
Size (bytes)500,411,52097,931,520
Size477.2 MB 93.4 MB
Events in quadrant A5,915,095651,879
Events in quadrant B5,138,833649,764
Events in quadrant C2,794,393648,763
Events in quadrant D4,193,458581,136

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214581
B0195021
C0130251
D0168841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62141873.009334%
B62144326.952044%
C6214661.062118%
D62153305.309735%

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 7134 6215 17 17 0.24% 0.27%
B 7134 6215 253 253 3.55% 4.07%
C 7134 6215 16 16 0.22% 0.26%
D 7135 6216 228 228 3.20% 3.67%

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 3129116 22398.23 674 659 139.7
A 14 248 141839 1010.78 674 659 139.7
A 9 191 29924 209.52 674 659 139.7
B 3 112 1984364 15404.8 662 640 128.8
B 5 255 337522 2616.09 662 640 128.8
B 0 190 88861 685.08 662 640 128.8
C 1 3 136224 862.34 671 674 157.2
C 11 16 16786 102.5 671 674 157.2
C 14 254 12182 73.21 671 674 157.2
D 13 249 847926 5178.09 660 636 163.6
D 1 52 291818 1779.51 660 636 163.6
D 13 112 224524 1368.26 660 636 163.6

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