ASTROSAT CZTI

Data Quality Report

Orbit 45676

Creation date: 2024-06-27T23:14:53.802261
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/AS1A13_093T12_9000006118_45676cztM0_level2.fits modeM0/AS1A13_093T12_9000006118_45676cztM0_level2_quad_clean.evt
Size (bytes)417,597,12099,426,240
Size398.3 MB 94.8 MB
Events in quadrant A5,110,897669,486
Events in quadrant B2,927,383692,945
Events in quadrant C2,931,596653,964
Events in quadrant D4,043,578594,078

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186411
B0124261
C0126481
D0158171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57251783.109170%
B5726871.519385%
C57261021.781348%
D57262564.470835%

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 6915 5725 9 9 0.13% 0.16%
B 6916 5726 11 11 0.16% 0.19%
C 6916 5727 46 46 0.67% 0.80%
D 6916 5727 194 194 2.81% 3.39%

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 10 83 2367865 17435.27 662 650 135.8
A 13 248 165627 1215.11 662 650 135.8
A 13 6 10693 73.97 662 650 135.8
B 5 172 62231 483.13 658 640 127.5
B 5 255 54074 419.14 658 640 127.5
B 0 190 48204 373.1 658 640 127.5
C 14 254 318147 2132.63 642 644 148.9
C 1 3 65005 432.3 642 644 148.9
C 0 207 18910 122.69 642 644 148.9
D 1 52 1025420 6296.4 645 624 162.8
D 13 249 353097 2165.61 645 624 162.8
D 2 249 92366 563.67 645 624 162.8

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