ASTROSAT CZTI

Data Quality Report

Orbit 32292

Creation date: 2024-06-27T20:39:12.916804
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_053T10_9000004698_32292cztM0_level2.evt modeM0/AS1A10_053T10_9000004698_32292cztM0_level2_quad_clean.evt
Size (bytes)624,862,08098,591,040
Size595.9 MB 94.0 MB
Events in quadrant A3,250,248711,369
Events in quadrant B5,484,962710,386
Events in quadrant C3,848,302480,701
Events in quadrant D5,902,260631,714

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138562
B0208081
C0158551
D0218641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6466610.943396%
B64661382.134241%
C6466196530.389731%
D64664537.005877%

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 7666 6467 0 0 0.00% 0.00%
B 7666 6467 16 16 0.21% 0.25%
C 7666 6463 7 7 0.09% 0.11%
D 7666 6467 280 280 3.65% 4.33%

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 12575 69.74 841 827 168.5
A 3 137 8153 43.49 841 827 168.5
A 13 6 7875 41.84 841 827 168.5
B 6 159 1852355 11760.39 832 814 157.4
B 0 190 192158 1215.36 832 814 157.4
B 5 172 66836 419.35 832 814 157.4
C 14 254 715719 5134.31 595 601 139.3
C 14 238 634810 4553.41 595 601 139.3
C 3 233 94216 672.12 595 601 139.3
D 8 195 1423366 7603.16 779 756 187.1
D 12 233 837131 4470.02 779 756 187.1
D 14 52 444974 2374.13 779 756 187.1

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