ASTROSAT CZTI

Data Quality Report

Orbit 32341

Creation date: 2024-06-27T20:39:05.087928
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_005T01_9000004700_32341cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32341cztM0_level2_quad_clean.evt
Size (bytes)650,796,48071,058,240
Size620.6 MB 67.8 MB
Events in quadrant A3,288,500440,912
Events in quadrant B6,130,364408,675
Events in quadrant C3,584,673415,994
Events in quadrant D6,235,484400,716

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142971
B0233810
C0149510
D0236020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6965831.191673%
B69655087.293611%
C69651572.254128%
D69651932.770998%

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 7420 6966 0 0 0.00% 0.00%
B 7420 6966 264 264 3.56% 3.79%
C 7420 6966 3 3 0.04% 0.04%
D 7420 6966 98 98 1.32% 1.41%

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 12 189 17626 98.77 843 824 170.1
A 13 6 14424 79.95 843 824 170.1
A 13 254 13335 73.54 843 824 170.1
B 6 159 1945183 12261.27 815 792 158.6
B 5 172 596004 3753.39 815 792 158.6
B 10 245 249630 1569.17 815 792 158.6
C 14 238 134763 702.72 808 812 190.6
C 14 67 112375 585.27 808 812 190.6
C 3 233 65966 341.8 808 812 190.6
D 8 195 1910488 9901.91 809 788 192.9
D 11 164 681442 3529.23 809 788 192.9
D 14 52 218852 1130.68 809 788 192.9

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