ASTROSAT CZTI

Data Quality Report

Orbit 05707

Creation date: 2024-06-27T14:58:13.329320
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/AS1A02_098T01_9000000736_05707cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05707cztM0_level2_quad_clean.evt
Size (bytes)520,738,56093,219,840
Size496.6 MB 88.9 MB
Events in quadrant A3,510,579577,899
Events in quadrant B4,476,390570,758
Events in quadrant C3,533,733581,208
Events in quadrant D3,730,698561,144

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158692
B0184641
C0159331
D0165241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7645580.758666%
B76451942.537606%
C7645190.248528%
D7645360.470896%

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 7685 7646 10 10 0.13% 0.13%
B 7685 7646 112 112 1.46% 1.46%
C 7685 7646 4 4 0.05% 0.05%
D 7685 7646 20 20 0.26% 0.26%

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 50 77732 418.31 888 868 183.7
A 0 226 8779 43.05 888 868 183.7
A 12 194 8688 42.56 888 868 183.7
B 5 172 523607 3029.08 888 866 172.6
B 15 204 153145 882.4 888 866 172.6
B 11 51 122856 706.89 888 866 172.6
C 9 16 89113 443.92 856 861 198.8
C 5 250 57116 282.97 856 861 198.8
C 8 128 11153 51.77 856 861 198.8
D 2 152 182844 860.24 858 831 211.6
D 8 195 91979 430.79 858 831 211.6
D 12 233 88272 413.27 858 831 211.6

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