ASTROSAT CZTI

Data Quality Report

Orbit 28082

Creation date: 2024-06-27T19:47:50.607794
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_073T01_9000004056_28082cztM0_level2.evt modeM0/AS1A10_073T01_9000004056_28082cztM0_level2_quad_clean.evt
Size (bytes)471,096,000130,541,760
Size449.3 MB 124.5 MB
Events in quadrant A3,030,055928,171
Events in quadrant B3,021,151917,984
Events in quadrant C3,612,845846,116
Events in quadrant D4,199,240845,907

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123650
B0123420
C0145320
D0164100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5948480.806994%
B5949611.025382%
C5949861.445621%
D59491442.420575%

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 7288 5949 0 0 0.00% 0.00%
B 7289 5950 0 0 0.00% 0.00%
C 7289 5950 2 2 0.03% 0.03%
D 7289 5950 98 98 1.34% 1.65%

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 13 14591 90.43 782 769 152.8
A 13 254 9622 57.92 782 769 152.8
A 0 226 6874 39.94 782 769 152.8
B 12 111 16367 110.92 762 745 140.8
B 11 111 14735 99.33 762 745 140.8
B 0 190 13667 91.75 762 745 140.8
C 3 233 673835 4110.22 720 725 163.8
C 14 238 119099 722.83 720 725 163.8
C 15 208 7519 41.49 720 725 163.8
D 8 195 563995 3249.05 740 723 173.4
D 1 52 522614 3010.35 740 723 173.4
D 2 250 241754 1390.31 740 723 173.4

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