ASTROSAT CZTI

Data Quality Report

Orbit 23160

Creation date: 2024-06-27T18:50:41.638381
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/AS1A08_009T01_9000003422_23160cztM0_level2.evt modeM0/AS1A08_009T01_9000003422_23160cztM0_level2_quad_clean.evt
Size (bytes)485,254,080119,545,920
Size462.8 MB 114.0 MB
Events in quadrant A3,081,742801,563
Events in quadrant B3,304,660832,527
Events in quadrant C4,088,427794,992
Events in quadrant D3,808,929767,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130542
B0136441
C0160741
D0155871

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6078490.806186%
B60791151.891759%
C60793826.283928%
D60791772.911663%

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 7448 6079 0 0 0.00% 0.00%
B 7449 6080 44 44 0.59% 0.72%
C 7449 6080 157 157 2.11% 2.58%
D 7449 6080 110 110 1.48% 1.81%

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 9417 54.62 796 782 158.1
A 0 226 6759 37.81 796 782 158.1
A 3 137 6510 36.23 796 782 158.1
B 10 247 139268 942.43 798 779 146.9
B 0 190 38105 254.01 798 779 146.9
B 12 111 16753 108.7 798 779 146.9
C 3 233 480734 2716.54 772 778 176.7
C 8 208 351501 1985.08 772 778 176.7
C 14 238 124247 698.83 772 778 176.7
D 1 52 648885 3473.48 780 760 186.6
D 7 238 142164 757.82 780 760 186.6
D 2 234 25564 132.93 780 760 186.6

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