ASTROSAT CZTI

Data Quality Report

Orbit 32057

Creation date: 2024-06-27T20:35:57.855351
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_9000004682_32057cztM0_level2.evt modeM0/AS1A10_109T01_9000004682_32057cztM0_level2_quad_clean.evt
Size (bytes)549,097,920107,496,000
Size523.7 MB 102.5 MB
Events in quadrant A3,273,679720,296
Events in quadrant B5,402,226708,661
Events in quadrant C3,825,671682,283
Events in quadrant D3,672,277675,527

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140042
B0208352
C0156702
D0154162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6727220.327040%
B67271341.991973%
C67272033.017690%
D6727410.609484%

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 7682 6727 0 0 0.00% 0.00%
B 7682 6727 42 42 0.55% 0.62%
C 7682 6727 58 58 0.76% 0.86%
D 7682 6727 14 14 0.18% 0.21%

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 12689 69.47 843 829 170.7
A 13 6 12587 68.88 843 829 170.7
A 3 137 8194 43.14 843 829 170.7
B 6 159 1883664 11897.02 831 810 158.3
B 5 172 167844 1055.42 831 810 158.3
B 10 245 30297 186.32 831 810 158.3
C 0 10 177285 932.35 809 817 189.3
C 3 233 154271 810.76 809 817 189.3
C 14 238 131487 690.38 809 817 189.3
D 8 195 422349 2179.17 815 793 193.4
D 12 233 125663 645.5 815 793 193.4
D 2 234 32120 161.94 815 793 193.4

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