ASTROSAT CZTI

Data Quality Report

Orbit 33092

Creation date: 2024-06-27T20:45:08.627732
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/AS1A11_030T01_9000004760_33092cztM0_level2.evt modeM0/AS1A11_030T01_9000004760_33092cztM0_level2_quad_clean.evt
Size (bytes)888,796,80084,251,520
Size847.6 MB 80.3 MB
Events in quadrant A2,699,124625,881
Events in quadrant B2,948,207635,878
Events in quadrant C6,873,383518,352
Events in quadrant D14,011,570369,978

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115733
B0121652
C0242332
D0454932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A570060.105263%
B5700410.719298%
C5700161828.385965%
D5700496287.052632%

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 9945 5702 0 0 0.00% 0.00%
B 9945 5702 30 30 0.30% 0.53%
C 9945 5702 1322 1322 13.29% 23.18%
D 9945 5702 5276 5276 53.05% 92.53%

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 13 254 10651 71.59 697 684 139.2
A 3 137 6334 40.58 697 684 139.2
A 0 226 5888 37.38 697 684 139.2
B 5 172 140254 1050.5 699 684 132.9
B 0 189 23325 170.41 699 684 132.9
B 15 85 16086 115.93 699 684 132.9
C 8 111 3906040 28873.93 584 590 135.3
C 1 23 224994 1659.07 584 590 135.3
C 0 10 170426 1255.64 584 590 135.3
D 7 223 10734620 87670.23 467 458 122.4
D 8 195 749591 6118.47 467 458 122.4
D 12 218 381130 3109.1 467 458 122.4

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