ASTROSAT CZTI

Data Quality Report

Orbit 29220

Creation date: 2024-06-27T20:01:40.033307
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_102T02_9000004200_29220cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29220cztM0_level2_quad_clean.evt
Size (bytes)472,533,120105,978,240
Size450.6 MB 101.1 MB
Events in quadrant A3,060,065700,205
Events in quadrant B3,470,840709,936
Events in quadrant C3,224,676679,257
Events in quadrant D4,108,122661,360

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133451
B0145471
C0137601
D0165121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6578390.592885%
B65791111.687187%
C6579711.079191%
D65791452.203982%

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 7528 6579 0 0 0.00% 0.00%
B 7529 6580 44 44 0.58% 0.67%
C 7529 6580 0 0 0.00% 0.00%
D 7529 6580 117 117 1.55% 1.78%

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 13677 82.02 788 771 157.3
A 13 254 13142 78.62 788 771 157.3
A 3 137 7803 44.69 788 771 157.3
B 0 229 299659 2007.05 776 756 148.9
B 10 245 89227 594.06 776 756 148.9
B 0 183 30786 201.64 776 756 148.9
C 3 233 155017 889.81 747 751 173.4
C 14 238 129694 743.75 747 751 173.4
C 2 114 15386 84.41 747 751 173.4
D 1 52 881673 4986.91 750 729 176.7
D 8 195 174559 984.03 750 729 176.7
D 2 250 82927 465.31 750 729 176.7

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