ASTROSAT CZTI

Data Quality Report

Orbit 07584

Creation date: 2024-06-27T15:21:18.403220
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/AS1A02_024T01_9000001044_07584cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07584cztM0_level2_quad_clean.evt
Size (bytes)533,396,16062,213,760
Size508.7 MB 59.3 MB
Events in quadrant A3,427,619367,364
Events in quadrant B3,435,633371,301
Events in quadrant C3,392,650367,655
Events in quadrant D5,463,164329,485

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141283
B0141662
C0140992
D0205082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64151111.730320%
B64151041.621200%
C6415861.340608%
D641566010.288387%

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 7715 6416 0 0 0.00% 0.00%
B 7715 6416 0 0 0.00% 0.00%
C 7715 6416 0 0 0.00% 0.00%
D 7715 6416 476 476 6.17% 7.42%

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 15 239 80208 458.67 864 849 173.0
A 3 1 22661 126.07 864 849 173.0
A 0 226 8295 43.04 864 849 173.0
B 0 214 31588 188.03 864 845 163.5
B 0 229 26904 159.38 864 845 163.5
B 0 219 19162 112.03 864 845 163.5
C 9 68 83455 427.38 842 849 193.3
C 1 16 15683 76.75 842 849 193.3
C 8 229 9994 47.31 842 849 193.3
D 2 152 1391621 6939.75 819 795 200.4
D 15 217 478541 2383.79 819 795 200.4
D 2 14 310898 1547.31 819 795 200.4

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