ASTROSAT CZTI

Data Quality Report

Orbit 21333

Creation date: 2024-06-27T18:26:30.038362
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/AS1A05_108T01_9000003146_21333cztM0_level2.evt modeM0/AS1A05_108T01_9000003146_21333cztM0_level2_quad_clean.evt
Size (bytes)467,801,28067,993,920
Size446.1 MB 64.8 MB
Events in quadrant A3,361,640406,928
Events in quadrant B3,461,340412,657
Events in quadrant C3,364,056399,269
Events in quadrant D3,540,990388,625

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141072
B0144332
C0141403
D0147122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6475841.297297%
B64751011.559846%
C64741161.791783%
D6474941.451962%

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 7615 6475 0 0 0.00% 0.00%
B 7615 6475 12 12 0.16% 0.19%
C 7614 6474 0 0 0.00% 0.00%
D 7614 6474 22 22 0.29% 0.34%

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 5 168 32455 184.86 859 843 171.0
A 11 47 20814 116.78 859 843 171.0
A 13 254 9067 48.09 859 843 171.0
B 3 64 45629 281.17 852 831 159.3
B 4 173 30827 188.27 852 831 159.3
B 0 230 29451 179.63 852 831 159.3
C 14 238 130131 679.98 827 834 190.1
C 13 61 5816 26.2 827 834 190.1
C 7 220 4090 17.12 827 834 190.1
D 1 52 193718 961.36 836 812 200.7
D 13 174 94993 469.36 836 812 200.7
D 12 235 43728 213.88 836 812 200.7

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