ASTROSAT CZTI

Data Quality Report

Orbit 17682

Creation date: 2024-06-27T17:39:35.078879
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/AS1T03_053T01_9000002616_17682cztM0_level2.evt modeM0/AS1T03_053T01_9000002616_17682cztM0_level2_quad_clean.evt
Size (bytes)464,993,280107,228,160
Size443.5 MB 102.3 MB
Events in quadrant A3,260,412699,934
Events in quadrant B3,583,466700,976
Events in quadrant C3,444,763677,577
Events in quadrant D3,306,170669,657

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145621
B0154041
C0150111
D0150651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7168781.088170%
B7168931.297433%
C71681201.674107%
D7168971.353237%

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 7757 7168 0 0 0.00% 0.00%
B 7758 7169 7 7 0.09% 0.10%
C 7758 7168 0 0 0.00% 0.00%
D 7758 7168 7 7 0.09% 0.10%

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 0 226 7154 37.05 844 823 170.9
A 3 137 6534 33.42 844 823 170.9
A 15 174 6477 33.09 844 823 170.9
B 7 220 107446 657.88 840 818 162.1
B 10 245 83293 508.86 840 818 162.1
B 15 35 20458 121.17 840 818 162.1
C 3 233 158889 839.63 800 804 188.3
C 14 238 124487 656.91 800 804 188.3
C 5 218 36598 190.11 800 804 188.3
D 7 238 121553 605.99 813 788 199.3
D 10 70 40521 199.38 813 788 199.3
D 2 234 32233 157.79 813 788 199.3

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