ASTROSAT CZTI

Data Quality Report

Orbit 03338

Creation date: 2024-06-27T14:27:44.866119
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_246T01_9000000450_03338cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03338cztM0_level2_quad_clean.evt
Size (bytes)1,195,968,960168,048,000
Size1.1 GB 160.3 MB
Events in quadrant A7,420,634997,298
Events in quadrant B9,376,4711,001,809
Events in quadrant C9,730,095979,464
Events in quadrant D8,557,717952,578

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0342193
B0387344
C0404542
D0380435

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03400
B03400
C03400
D03400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A167871490.887592%
B167862431.447635%
C167874702.799786%
D167864662.776123%

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 26217 16790 3 3 0.01% 0.02%
B 26217 16790 44 44 0.17% 0.26%
C 26217 16790 269 269 1.03% 1.60%
D 26217 16789 268 268 1.02% 1.60%

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 14 39896 97.37 1902 1860 390.6
A 0 118 26772 63.77 1902 1860 390.6
A 0 226 21812 51.07 1902 1860 390.6
B 15 204 1073113 2849.58 1929 1879 375.9
B 14 167 513848 1361.89 1929 1879 375.9
B 0 229 229639 605.86 1929 1879 375.9
C 14 223 1728916 3995.59 1848 1858 432.2
C 8 208 574716 1325.32 1848 1858 432.2
C 1 192 71653 161.47 1848 1858 432.2
D 13 223 1078059 2382.59 1837 1779 451.7
D 2 216 291603 641.59 1837 1779 451.7
D 5 233 61671 132.58 1837 1779 451.7

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