ASTROSAT CZTI

Data Quality Report

Orbit 28112

Creation date: 2024-06-27T19:48:10.894911
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_057T05_9000004060_28112cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28112cztM0_level2_quad_clean.evt
Size (bytes)524,692,80078,387,840
Size500.4 MB 74.8 MB
Events in quadrant A3,167,177501,372
Events in quadrant B3,230,172499,973
Events in quadrant C3,236,097476,329
Events in quadrant D5,840,056466,751

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128010
B0130360
C0130500
D0217820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61441332.164714%
B61441402.278646%
C61451612.620016%
D61444447.226562%

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 7230 6144 0 0 0.00% 0.00%
B 7230 6144 0 0 0.00% 0.00%
C 7231 6145 6 6 0.08% 0.10%
D 7230 6144 246 246 3.40% 4.00%

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 10295 57.6 821 803 164.8
A 3 137 7525 40.79 821 803 164.8
A 0 226 6915 37.09 821 803 164.8
B 15 32 33988 217.85 799 779 152.4
B 4 200 22449 142.15 799 779 152.4
B 0 230 19870 125.23 799 779 152.4
C 14 238 127674 710.29 773 780 178.7
C 15 208 71898 398.08 773 780 178.7
C 3 233 20530 110.55 773 780 178.7
D 7 223 1429984 7757.18 779 758 184.2
D 1 52 796683 4319.91 779 758 184.2
D 8 195 404574 2191.73 779 758 184.2

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