ASTROSAT CZTI

Data Quality Report

Orbit 32263

Creation date: 2024-06-27T20:38:13.518355
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/AS1A09_131T01_9000004696_32263cztM0_level2.evt modeM0/AS1A09_131T01_9000004696_32263cztM0_level2_quad_clean.evt
Size (bytes)615,418,56097,856,640
Size586.9 MB 93.3 MB
Events in quadrant A3,216,022637,023
Events in quadrant B5,569,117638,988
Events in quadrant C3,681,340640,698
Events in quadrant D5,744,047605,666

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138342
B0211452
C0151932
D0211882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6316550.870804%
B63161562.469918%
C63162493.942369%
D631667510.687144%

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 7531 6317 0 0 0.00% 0.00%
B 7531 6317 18 18 0.24% 0.28%
C 7531 6317 59 59 0.78% 0.93%
D 7531 6317 422 422 5.60% 6.68%

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 12834 73.2 827 811 164.2
A 13 6 11268 63.67 827 811 164.2
A 12 96 8287 45.52 827 811 164.2
B 6 159 1973037 12943.38 824 805 152.4
B 5 172 140592 917.4 824 805 152.4
B 0 229 115226 750.92 824 805 152.4
C 0 10 288157 1569.18 804 812 183.1
C 14 238 135893 737.67 804 812 183.1
C 4 175 47423 254.54 804 812 183.1
D 8 195 1215497 6541.18 785 766 185.7
D 13 249 509464 2739.27 785 766 185.7
D 12 218 275729 1480.64 785 766 185.7

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