ASTROSAT CZTI

Data Quality Report

Orbit 30097

Creation date: 2024-06-27T20:10:45.216916
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_050T05_9000004330_30097cztM0_level2.evt modeM0/AS1A10_050T05_9000004330_30097cztM0_level2_quad_clean.evt
Size (bytes)309,006,72038,384,640
Size294.7 MB 36.6 MB
Events in quadrant A1,933,120225,879
Events in quadrant B3,037,358224,308
Events in quadrant C1,831,176216,935
Events in quadrant D2,288,472217,032

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081680
B0118950
C078780
D092430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A392760.152788%
B3928150.381874%
C3928170.432790%
D3928681.731161%

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 3927 3927 3 3 0.08% 0.08%
B 3928 3928 1 1 0.03% 0.03%
C 3928 3928 0 0 0.00% 0.00%
D 3928 3928 61 61 1.55% 1.55%

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 13 110956 1163.25 469 458 95.0
A 13 210 9227 92.31 469 458 95.0
A 13 254 7326 72.3 469 458 95.0
B 6 159 1134332 12596.99 460 450 90.0
B 0 190 57162 630.05 460 450 90.0
B 5 235 14086 151.49 460 450 90.0
C 14 238 72716 681.33 446 448 106.1
C 2 114 9057 81.16 446 448 106.1
C 3 233 5105 43.91 446 448 106.1
D 12 2 296345 2599.36 449 438 113.8
D 8 195 100156 875.96 449 438 113.8
D 7 238 96075 840.11 449 438 113.8

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