ASTROSAT CZTI

Data Quality Report

Orbit 32202

Creation date: 2024-06-27T20:37:32.770388
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_057T01_9000004692_32202cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32202cztM0_level2_quad_clean.evt
Size (bytes)623,701,44066,208,320
Size594.8 MB 63.1 MB
Events in quadrant A3,128,188397,302
Events in quadrant B5,764,381393,025
Events in quadrant C4,139,906390,407
Events in quadrant D5,431,273385,154

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133162
B0215611
C0166671
D0204521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6283550.875378%
B62835078.069394%
C62832884.583798%
D628379212.605443%

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 7238 6284 4 4 0.06% 0.06%
B 7238 6284 195 195 2.69% 3.10%
C 7238 6284 3 3 0.04% 0.05%
D 7238 6284 522 522 7.21% 8.31%

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 34984 215.98 785 767 158.4
A 12 96 34958 215.82 785 767 158.4
A 0 6 14811 88.65 785 767 158.4
B 6 159 1817729 12617.59 752 734 144.0
B 5 172 824986 5723.78 752 734 144.0
B 0 229 63047 432.71 752 734 144.0
C 3 233 943658 5333.59 751 757 176.8
C 14 238 144965 815.72 751 757 176.8
C 0 10 41636 231.24 751 757 176.8
D 12 218 1476627 8481.14 727 710 174.0
D 8 195 345114 1979.07 727 710 174.0
D 14 52 333222 1910.73 727 710 174.0

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