ASTROSAT CZTI

Data Quality Report

Orbit 16425

Creation date: 2024-06-27T17:22:29.358563
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/AS1A05_069T03_9000002426_16425cztM0_level2.evt modeM0/AS1A05_069T03_9000002426_16425cztM0_level2_quad_clean.evt
Size (bytes)456,730,56094,334,400
Size435.6 MB 90.0 MB
Events in quadrant A3,251,837608,163
Events in quadrant B3,642,861621,256
Events in quadrant C3,231,517589,909
Events in quadrant D3,252,998572,794

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141483
B0152692
C0139442
D0143852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6663580.870479%
B66631081.620891%
C6663941.410776%
D6663761.140627%

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 8674 6665 0 0 0.00% 0.00%
B 8674 6665 8 8 0.09% 0.12%
C 8674 6665 0 0 0.00% 0.00%
D 8674 6665 27 27 0.31% 0.41%

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 15 174 102906 624.04 807 789 163.6
A 13 248 24952 147.66 807 789 163.6
A 15 223 13893 80.08 807 789 163.6
B 15 35 143601 928.32 811 790 153.8
B 0 189 113396 731.98 811 790 153.8
B 0 198 69332 445.55 811 790 153.8
C 14 238 120287 651.87 780 785 183.3
C 3 233 46942 251.78 780 785 183.3
C 7 247 17941 93.58 780 785 183.3
D 12 218 154346 798.41 786 762 192.4
D 10 70 79365 408.62 786 762 192.4
D 2 234 26813 135.43 786 762 192.4

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