ASTROSAT CZTI

Data Quality Report

Orbit 09392

Creation date: 2024-06-27T15:45:27.119141
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/AS1G07_069T01_9000001332_09392cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09392cztM0_level2_quad_clean.evt
Size (bytes)770,319,360175,386,240
Size734.6 MB 167.3 MB
Events in quadrant A6,443,8371,148,356
Events in quadrant B5,053,3011,166,036
Events in quadrant C4,858,3761,172,002
Events in quadrant D6,279,6161,115,570

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02612716
B02220116
C02145912
D02561823

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02102
B02100
C02100
D02100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102542162.106495%
B102541000.975229%
C102551081.053145%
D102514154.048386%

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 12724 10261 67 67 0.53% 0.65%
B 12724 10261 4 4 0.03% 0.04%
C 12724 10261 16 16 0.13% 0.16%
D 12724 10261 281 281 2.21% 2.74%

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 8 5 1577936 6385.15 1231 1205 246.9
A 5 16 37733 147.92 1231 1205 246.9
A 1 162 36008 140.94 1231 1205 246.9
B 0 214 86336 369.67 1240 1209 230.3
B 0 187 66896 285.25 1240 1209 230.3
B 8 234 28753 119.61 1240 1209 230.3
C 14 234 76989 273.25 1223 1232 277.2
C 13 61 9182 28.68 1223 1232 277.2
C 10 22 7519 22.68 1223 1232 277.2
D 1 52 603054 1976.33 1202 1176 304.5
D 2 14 343601 1124.39 1202 1176 304.5
D 12 227 256605 838.73 1202 1176 304.5

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