ASTROSAT CZTI

Data Quality Report

Orbit 45461

Creation date: 2024-06-27T23:12:34.366949
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/AS1A13_038T04_9000006090_45461cztM0_level2.fits modeM0/AS1A13_038T04_9000006090_45461cztM0_level2_quad_clean.evt
Size (bytes)466,231,680108,486,720
Size444.6 MB 103.5 MB
Events in quadrant A5,460,988720,579
Events in quadrant B3,956,361746,345
Events in quadrant C2,996,962730,167
Events in quadrant D4,343,934638,297

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210972
B0161922
C0135153
D0176182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64451973.056633%
B64452263.506594%
C6444300.465549%
D64442854.422719%

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 7616 6446 28 28 0.37% 0.43%
B 7616 6446 110 110 1.44% 1.71%
C 7615 6445 10 10 0.13% 0.16%
D 7615 6445 187 187 2.46% 2.90%

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 2623040 17529.82 729 714 149.6
A 2 79 10317 64.19 729 714 149.6
A 0 243 8826 54.23 729 714 149.6
B 15 201 897859 6196.06 735 713 144.8
B 5 172 59478 405.86 735 713 144.8
B 0 189 28275 190.35 735 713 144.8
C 14 254 55689 321.11 728 734 171.1
C 2 14 48900 281.44 728 734 171.1
C 1 3 27499 156.39 728 734 171.1
D 1 52 1084067 6064.03 705 684 178.7
D 11 241 261853 1461.84 705 684 178.7
D 13 249 90308 501.65 705 684 178.7

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