ASTROSAT CZTI

Data Quality Report

Orbit 04083

Creation date: 2024-06-27T14:37:09.372448
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_222T01_9000000520_04083cztM0_level2.evt modeM0/AS1G05_222T01_9000000520_04083cztM0_level2_quad_clean.evt
Size (bytes)478,828,80085,489,920
Size456.6 MB 81.5 MB
Events in quadrant A3,439,100533,748
Events in quadrant B3,700,826538,420
Events in quadrant C3,225,440527,856
Events in quadrant D3,666,433507,315

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147733
B0155762
C0142472
D0158002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6912470.679977%
B69121041.504630%
C6912100.144676%
D69121231.779514%

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 9422 6914 11 11 0.12% 0.16%
B 9422 6914 58 58 0.62% 0.84%
C 9422 6914 0 0 0.00% 0.00%
D 9422 6914 91 91 0.97% 1.32%

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 0 199 140068 814.93 832 814 170.9
A 0 50 70328 406.8 832 814 170.9
A 0 226 20817 117.06 832 814 170.9
B 14 167 180337 1098.26 845 826 163.4
B 10 16 128312 779.97 845 826 163.4
B 15 54 35788 213.9 845 826 163.4
C 9 144 17140 84.89 821 826 192.2
C 13 61 6825 31.21 821 826 192.2
C 3 202 2020 6.21 821 826 192.2
D 10 172 174341 884.43 809 785 196.2
D 2 14 142767 723.53 809 785 196.2
D 12 233 125007 633.03 809 785 196.2

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