ASTROSAT CZTI

Data Quality Report

Orbit 06429

Creation date: 2024-06-27T15:07:06.031500
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_191T02_9000000852_06429cztM0_level2.evt modeM0/AS1A02_191T02_9000000852_06429cztM0_level2_quad_clean.evt
Size (bytes)485,291,52097,335,360
Size462.8 MB 92.8 MB
Events in quadrant A3,160,095620,159
Events in quadrant B3,244,002639,905
Events in quadrant C3,070,427614,505
Events in quadrant D4,745,128583,610

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143832
B0144191
C0143251
D0189391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70311161.649836%
B70311021.450718%
C7031761.080927%
D70311962.787655%

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 7646 7032 0 0 0.00% 0.00%
B 7646 7032 1 1 0.01% 0.01%
C 7646 7032 0 0 0.00% 0.00%
D 7646 7032 95 95 1.24% 1.35%

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 0 226 7982 43.26 814 794 166.2
A 12 194 7775 42.01 814 794 166.2
A 8 15 6973 37.19 814 794 166.2
B 15 204 25829 157.82 819 800 158.6
B 0 219 19499 117.91 819 800 158.6
B 12 111 15819 94.7 819 800 158.6
C 9 54 7611 37.49 784 786 182.0
C 13 61 6264 30.09 784 786 182.0
C 3 202 1962 6.46 784 786 182.0
D 11 241 1270812 6623.49 783 756 191.8
D 2 152 402894 2097.2 783 756 191.8
D 5 97 29035 147.48 783 756 191.8

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