ASTROSAT CZTI

Data Quality Report

Orbit 49610

Creation date: 2024-11-30T10:02:21.976328
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/AS1T05_233T01_9000006438_49610cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49610cztM0_level2_quad_clean.evt
Size (bytes)1,151,300,16046,814,400
Size1.1 GB 44.6 MB
Events in quadrant A17,153,990188,382
Events in quadrant B4,902,896661,617
Events in quadrant C3,831,7153,749
Events in quadrant D16,215,19893,716

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0555063
B0189971
C0164111
D0526711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601660099.984851%
B66013965.999091%
C66026602100.000000%
D6602658199.681915%

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 7426 6602 6351 6351 85.52% 96.20%
B 7426 6602 291 291 3.92% 4.41%
C 7426 6601 149 149 2.01% 2.26%
D 7427 6602 5656 5656 76.15% 85.67%

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 3683823 53235.45 223 214 69.2
A 0 99 3586313 51826.24 223 214 69.2
A 0 98 2292520 33128.36 223 214 69.2
B 3 232 688204 4703.37 683 663 146.2
B 4 206 451733 3085.71 683 663 146.2
B 4 170 207273 1413.39 683 663 146.2
C 15 181 1047190 89905.4 10 9 11.6
C 15 180 824405 70778.26 10 9 11.6
C 15 235 661801 56817.94 10 9 11.6
D 15 40 2958998 33209.63 138 124 89.1
D 15 122 2493857 27989.01 138 124 89.1
D 15 94 2237327 25109.79 138 124 89.1

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