ASTROSAT CZTI

Data Quality Report

Orbit 32230

Creation date: 2024-06-27T20:37:50.646353
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_057T01_9000004692_32230cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32230cztM0_level2_quad_clean.evt
Size (bytes)1,532,257,920208,877,760
Size1.4 GB 199.2 MB
Events in quadrant A8,464,9111,332,729
Events in quadrant B14,273,3701,328,405
Events in quadrant C10,721,1941,157,075
Events in quadrant D11,729,3751,266,703

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0366014
B0558723
C0436173
D0459623

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179851841.023075%
B179854462.479844%
C17985447124.859605%
D179858104.503753%

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 19780 17988 0 0 0.00% 0.00%
B 19780 17988 98 98 0.50% 0.54%
C 19780 17988 13 13 0.07% 0.07%
D 19780 17988 480 480 2.43% 2.67%

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 6 39132 85.5 2175 2134 432.7
A 13 254 33248 71.9 2175 2134 432.7
A 3 137 22433 46.91 2175 2134 432.7
B 6 159 4887225 12019.23 2142 2084 406.4
B 5 172 376549 921.32 2142 2084 406.4
B 4 80 133816 324.11 2142 2084 406.4
C 14 254 1651719 3820.43 1848 1860 431.9
C 14 238 1525393 3527.91 1848 1860 431.9
C 14 67 108994 248.08 1848 1860 431.9
D 8 195 1597108 3225.29 2081 2026 494.6
D 2 250 975438 1968.26 2081 2026 494.6
D 12 218 471805 949.9 2081 2026 494.6

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