ASTROSAT CZTI

Data Quality Report

Orbit 28573

Creation date: 2024-06-27T19:53:30.458370
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/AS1A10_110T01_9000004104_28573cztM0_level2.evt modeM0/AS1A10_110T01_9000004104_28573cztM0_level2_quad_clean.evt
Size (bytes)573,122,88067,374,720
Size546.6 MB 64.3 MB
Events in quadrant A3,772,145402,404
Events in quadrant B4,172,311402,907
Events in quadrant C3,848,301393,760
Events in quadrant D5,121,120384,491

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155072
B0167342
C0157582
D0197942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65471211.848175%
B65471922.932641%
C65471912.917367%
D65473765.743088%

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 7827 6547 0 0 0.00% 0.00%
B 7827 6547 43 43 0.55% 0.66%
C 7827 6547 9 9 0.11% 0.14%
D 7826 6546 240 240 3.07% 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 15 174 76401 399.75 956 941 188.8
A 13 254 9909 47.51 956 941 188.8
A 8 192 8846 41.87 956 941 188.8
B 4 171 346785 1992.62 937 917 173.6
B 15 33 115014 657.34 937 917 173.6
B 12 111 20430 112.42 937 917 173.6
C 14 238 152240 710.31 925 936 213.0
C 0 207 56994 263.17 925 936 213.0
C 3 233 19611 87.67 925 936 213.0
D 1 52 1306776 5958.77 926 906 219.2
D 2 250 139094 630.56 926 906 219.2
D 8 195 134438 609.31 926 906 219.2

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