ASTROSAT CZTI

Data Quality Report

Orbit 07107

Creation date: 2024-06-27T15:15:40.327491
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/AS1A02_090T01_9000000970_07107cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07107cztM0_level2_quad_clean.evt
Size (bytes)450,763,20068,952,960
Size429.9 MB 65.8 MB
Events in quadrant A3,205,393415,905
Events in quadrant B3,324,713422,119
Events in quadrant C3,184,592412,535
Events in quadrant D3,499,970388,857

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134063
B0136772
C0134822
D0144902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6422871.354718%
B64221061.650576%
C6422671.043289%
D64221051.635005%

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 7667 6422 3 3 0.04% 0.05%
B 7667 6422 2 2 0.03% 0.03%
C 7667 6422 2 2 0.03% 0.03%
D 7667 6422 38 38 0.50% 0.59%

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 14 111 20486 117.41 825 810 167.6
A 13 14 10137 55.65 825 810 167.6
A 0 226 7851 42.01 825 810 167.6
B 0 214 66569 415.67 836 820 158.2
B 12 111 15515 92.9 836 820 158.2
B 0 219 12592 74.42 836 820 158.2
C 4 254 46807 248.26 800 809 185.3
C 10 22 8635 42.24 800 809 185.3
C 13 61 6235 29.28 800 809 185.3
D 2 216 257465 1338.3 789 767 191.8
D 8 195 131967 684.02 789 767 191.8
D 1 20 60070 309.18 789 767 191.8

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