ASTROSAT CZTI

Data Quality Report

Orbit 07371

Creation date: 2024-06-27T15:19:03.250614
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/AS1G06_151T02_9000001010_07371cztM0_level2.evt modeM0/AS1G06_151T02_9000001010_07371cztM0_level2_quad_clean.evt
Size (bytes)568,247,04099,659,520
Size541.9 MB 95.0 MB
Events in quadrant A5,550,290610,573
Events in quadrant B3,665,271630,143
Events in quadrant C3,429,378635,646
Events in quadrant D4,037,202601,514

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114
B080
C0103
D081

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03225110062
B02788611455
C02605310014
D03028812782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025490
B025593
C0256102
D0255103

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77765126.584362%
B7727520.672965%
C7805320.409994%
D7738580.749548%

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 13345 8138 291 291 2.18% 3.58%
B 13345 8073 7 7 0.05% 0.09%
C 13345 8201 4 4 0.03% 0.05%
D 13345 8073 34 34 0.25% 0.42%

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 15 234 1409539 8068.37 857 839 174.6
A 14 111 704421 4029.79 857 839 174.6
A 15 239 109785 623.99 857 839 174.6
B 0 187 214256 1258.47 881 861 169.6
B 12 111 17686 99.22 881 861 169.6
B 11 111 14044 77.75 881 861 169.6
C 1 16 37934 184.73 856 862 200.7
C 9 68 31264 151.5 856 862 200.7
C 8 229 17639 83.6 856 862 200.7
D 1 52 406445 1952.62 844 818 207.7
D 14 34 188889 905.34 844 818 207.7
D 1 20 179707 861.14 844 818 207.7

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