ASTROSAT CZTI

Data Quality Report

Orbit 03377

Creation date: 2024-06-27T14:28:13.596124
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_112T01_9000000452_03377cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03377cztM0_level2_quad_clean.evt
Size (bytes)574,683,84086,794,560
Size548.1 MB 82.8 MB
Events in quadrant A3,911,419520,299
Events in quadrant B5,806,659523,917
Events in quadrant C3,678,943527,927
Events in quadrant D3,473,166508,772

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171751
B0229100
C0166300
D0163510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78682943.736655%
B78684886.202339%
C78681181.499746%
D78681271.614133%

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 7868 7868 73 73 0.93% 0.93%
B 7868 7868 140 140 1.78% 1.78%
C 7868 7868 22 22 0.28% 0.28%
D 7868 7868 8 8 0.10% 0.10%

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 50 347000 1833.95 914 891 188.7
A 14 249 19330 97.7 914 891 188.7
A 0 118 10879 52.92 914 891 188.7
B 4 170 1262096 7155.93 905 879 176.2
B 14 167 566754 3210.68 905 879 176.2
B 15 204 369119 2089.33 905 879 176.2
C 15 208 115703 545.65 895 897 210.4
C 6 80 29249 134.75 895 897 210.4
C 1 192 18369 83.04 895 897 210.4
D 13 223 53446 224.26 888 865 234.5
D 2 206 25339 104.38 888 865 234.5
D 10 34 12074 47.81 888 865 234.5

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