ASTROSAT CZTI

Data Quality Report

Orbit 30834

Creation date: 2024-06-27T20:20:09.473929
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_071T38_9000004454_30834cztM0_level2.evt modeM0/AS1A10_071T38_9000004454_30834cztM0_level2_quad_clean.evt
Size (bytes)640,742,40074,767,680
Size611.1 MB 71.3 MB
Events in quadrant A3,497,805468,397
Events in quadrant B6,205,468452,946
Events in quadrant C3,730,776441,318
Events in quadrant D5,513,421429,202

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141772
B0229232
C0148362
D0211692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6769931.373910%
B67693955.835426%
C67691892.792141%
D67691582.334170%

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 7764 6769 0 0 0.00% 0.00%
B 7764 6769 161 161 2.07% 2.38%
C 7764 6769 23 23 0.30% 0.34%
D 7764 6769 55 55 0.71% 0.81%

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 12973 66.21 906 889 182.5
A 3 137 8783 43.25 906 889 182.5
A 0 226 7593 36.73 906 889 182.5
B 6 159 1811774 10812.87 879 859 167.5
B 6 36 734099 4378.13 879 859 167.5
B 5 255 87125 515.09 879 859 167.5
C 0 10 180732 905.11 847 853 198.7
C 14 238 138804 694.14 847 853 198.7
C 3 233 55355 274.24 847 853 198.7
D 8 195 1898098 9330.39 853 835 203.3
D 12 218 177744 870.01 853 835 203.3
D 1 52 113966 556.36 853 835 203.3

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