ASTROSAT CZTI

Data Quality Report

Orbit 28554

Creation date: 2024-06-27T19:53:16.787838
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_102T07_9000004102_28554cztM0_level2.evt modeM0/AS1A10_102T07_9000004102_28554cztM0_level2_quad_clean.evt
Size (bytes)550,005,12074,891,520
Size524.5 MB 71.4 MB
Events in quadrant A3,457,369466,277
Events in quadrant B3,632,744465,666
Events in quadrant C3,389,905448,093
Events in quadrant D5,717,292415,136

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144312
B0149262
C0142992
D0212443

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6782751.105868%
B67821742.565615%
C67821091.607196%
D67816679.836307%

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 7747 6782 13 13 0.17% 0.19%
B 7747 6782 84 84 1.08% 1.24%
C 7747 6782 0 0 0.00% 0.00%
D 7746 6781 637 637 8.22% 9.39%

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 15 174 130177 744.55 861 842 173.7
A 13 254 10292 54.4 861 842 173.7
A 3 137 8430 43.68 861 842 173.7
B 10 245 227467 1398.31 850 829 162.1
B 4 171 29619 177.63 850 829 162.1
B 0 230 22117 131.34 850 829 162.1
C 14 238 131456 676.0 822 828 193.2
C 7 247 43583 221.26 822 828 193.2
C 3 233 13965 67.98 822 828 193.2
D 1 52 2109875 10909.33 804 781 193.3
D 8 195 462188 2386.64 804 781 193.3
D 6 112 32530 164.22 804 781 193.3

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