ASTROSAT CZTI

Data Quality Report

Orbit 28322

Creation date: 2024-06-27T19:50:28.908898
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_116T01_9000004082_28322cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28322cztM0_level2_quad_clean.evt
Size (bytes)513,241,92091,373,760
Size489.5 MB 87.1 MB
Events in quadrant A2,955,225607,969
Events in quadrant B3,868,442600,479
Events in quadrant C3,084,849575,474
Events in quadrant D5,212,435548,175

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128300
B0156030
C0132890
D0196560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6232620.994865%
B62332744.395957%
C62331011.620408%
D62334947.925558%

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 7152 6232 0 0 0.00% 0.00%
B 7153 6233 135 135 1.89% 2.17%
C 7153 6233 0 0 0.00% 0.00%
D 7153 6233 365 365 5.10% 5.86%

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 11023 66.16 766 752 155.3
A 3 137 7638 44.35 766 752 155.3
A 0 226 6444 36.66 766 752 155.3
B 10 245 869837 5934.3 752 734 146.5
B 10 246 24536 162.52 752 734 146.5
B 12 111 18113 118.67 752 734 146.5
C 3 233 148443 870.5 723 726 169.7
C 14 238 118406 693.49 723 726 169.7
C 13 61 4949 24.89 723 726 169.7
D 8 195 935346 5452.94 714 695 171.4
D 1 52 790911 4610.27 714 695 171.4
D 7 238 623622 3634.28 714 695 171.4

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