ASTROSAT CZTI

Data Quality Report

Orbit 05143

Creation date: 2024-06-27T14:51:54.601135
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/AS1G05_102T01_9000000650_05143cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05143cztM0_level2_quad_clean.evt
Size (bytes)527,993,28085,930,560
Size503.5 MB 81.9 MB
Events in quadrant A3,584,591527,534
Events in quadrant B4,310,489527,997
Events in quadrant C3,288,252531,022
Events in quadrant D4,306,196502,030

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158882
B0176821
C0151891
D0180161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73731812.454903%
B73731822.468466%
C7373430.583209%
D73732353.187305%

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 7538 7375 27 27 0.36% 0.37%
B 7538 7375 52 52 0.69% 0.71%
C 7538 7375 0 0 0.00% 0.00%
D 7538 7375 187 187 2.48% 2.54%

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 0 247 197315 1090.51 862 843 180.2
A 0 50 46287 252.24 862 843 180.2
A 0 226 26025 139.77 862 843 180.2
B 8 3 598150 3551.23 868 848 168.2
B 15 204 116053 684.95 868 848 168.2
B 5 200 97820 576.54 868 848 168.2
C 12 4 13695 65.72 835 840 195.6
C 13 61 6858 30.77 835 840 195.6
C 1 16 6505 28.96 835 840 195.6
D 2 33 690182 3377.12 832 808 204.1
D 2 221 133372 649.41 832 808 204.1
D 12 233 108028 525.25 832 808 204.1

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