ASTROSAT CZTI

Data Quality Report

Orbit 30140

Creation date: 2024-06-27T20:11:25.063344
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_097T03_9000004336_30140cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30140cztM0_level2_quad_clean.evt
Size (bytes)785,410,56090,048,960
Size749.0 MB 85.9 MB
Events in quadrant A3,743,712584,961
Events in quadrant B5,074,207589,968
Events in quadrant C10,650,696509,953
Events in quadrant D3,864,408573,167

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154191
B0202231
C0363571
D0156111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67172012.992407%
B67171051.563198%
C6717267539.824326%
D67171221.816287%

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 7302 6718 88 88 1.21% 1.31%
B 7302 6718 0 0 0.00% 0.00%
C 7302 6718 1717 1717 23.51% 25.56%
D 7302 6718 65 65 0.89% 0.97%

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 13 596954 3682.83 811 794 161.9
A 13 254 12405 71.73 811 794 161.9
A 8 192 11466 65.93 811 794 161.9
B 6 159 1908404 12313.59 802 779 154.9
B 12 111 19321 119.69 802 779 154.9
B 11 111 17269 106.44 802 779 154.9
C 3 233 7674502 46052.91 714 718 166.6
C 14 238 138939 829.51 714 718 166.6
C 14 254 36607 215.38 714 718 166.6
D 13 168 369379 1883.51 799 781 195.7
D 8 195 152695 776.27 799 781 195.7
D 1 52 106325 539.32 799 781 195.7

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