ASTROSAT CZTI

Data Quality Report

Orbit 29198

Creation date: 2024-06-27T20:01:23.189557
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_053T19_9000004190_29198cztM0_level2.evt modeM0/AS1A10_053T19_9000004190_29198cztM0_level2_quad_clean.evt
Size (bytes)589,438,08094,633,920
Size562.1 MB 90.2 MB
Events in quadrant A3,146,204623,525
Events in quadrant B3,856,156625,928
Events in quadrant C4,836,502601,884
Events in quadrant D5,579,454567,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133761
B0155581
C0189821
D0209641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6398400.625195%
B63981372.141294%
C63981872.922788%
D63993725.813408%

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 7483 6399 0 0 0.00% 0.00%
B 7483 6399 57 57 0.76% 0.89%
C 7483 6399 13 13 0.17% 0.20%
D 7484 6400 371 371 4.96% 5.80%

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 12964 74.72 815 801 162.8
A 3 137 7703 42.4 815 801 162.8
A 0 226 6940 37.71 815 801 162.8
B 5 255 254488 1659.58 807 787 152.9
B 0 183 245863 1603.16 807 787 152.9
B 0 229 98062 636.32 807 787 152.9
C 3 233 1663263 9130.12 778 786 182.1
C 14 238 125856 686.87 778 786 182.1
C 2 114 15800 82.45 778 786 182.1
D 1 52 1724382 9368.16 767 748 184.0
D 8 195 488283 2649.81 767 748 184.0
D 2 250 190579 1031.75 767 748 184.0

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