ASTROSAT CZTI

Data Quality Report

Orbit 23045

Creation date: 2024-06-27T18:49:47.038718
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/AS1A07_054T01_9000003406_23045cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23045cztM0_level2_quad_clean.evt
Size (bytes)463,835,520118,969,920
Size442.3 MB 113.5 MB
Events in quadrant A3,083,771799,142
Events in quadrant B3,392,602820,643
Events in quadrant C3,384,030769,301
Events in quadrant D3,737,397753,026

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135782
B0143582
C0143772
D0156982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6615120.181406%
B6615941.421013%
C66151832.766440%
D66151021.541950%

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 7885 6617 0 0 0.00% 0.00%
B 7885 6617 52 52 0.66% 0.79%
C 7885 6617 38 38 0.48% 0.57%
D 7885 6617 82 82 1.04% 1.24%

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 10013 58.22 799 783 158.5
A 0 226 6910 38.64 799 783 158.5
A 3 137 6772 37.77 799 783 158.5
B 4 216 184905 1241.0 802 782 148.4
B 3 64 26044 170.27 802 782 148.4
B 12 111 17492 112.63 802 782 148.4
C 0 10 191399 1093.12 764 770 174.4
C 14 238 125382 714.56 764 770 174.4
C 0 207 63090 357.36 764 770 174.4
D 1 52 633296 3416.4 769 747 185.2
D 13 153 72438 387.2 769 747 185.2
D 13 174 61666 329.02 769 747 185.2

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