ASTROSAT CZTI

Data Quality Report

Orbit 32067

Creation date: 2024-06-27T20:35:32.647426
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_109T01_9000004678_32067cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32067cztM0_level2_quad_clean.evt
Size (bytes)702,501,120115,951,680
Size670.0 MB 110.6 MB
Events in quadrant A4,046,198773,095
Events in quadrant B6,555,680757,756
Events in quadrant C4,352,870729,109
Events in quadrant D5,788,106704,183

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167170
B0249800
C0175410
D0223380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78742202.794006%
B78744575.803912%
C78743174.025908%
D78743304.191008%

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 7874 7874 0 0 0.00% 0.00%
B 7874 7874 58 58 0.74% 0.74%
C 7874 7874 15 15 0.19% 0.19%
D 7874 7874 214 214 2.72% 2.72%

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 15 174 15328 68.29 1043 1020 209.5
A 13 254 14837 65.95 1043 1020 209.5
A 3 137 10566 45.56 1043 1020 209.5
B 6 159 2057711 10497.02 1013 987 195.9
B 5 172 267210 1358.73 1013 987 195.9
B 10 245 141185 715.53 1013 987 195.9
C 0 10 182131 775.1 991 1001 233.7
C 14 238 161550 687.03 991 1001 233.7
C 12 249 53332 223.94 991 1001 233.7
D 12 227 896080 3717.73 1001 976 240.8
D 12 218 400693 1660.19 1001 976 240.8
D 8 195 322397 1334.99 1001 976 240.8

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