ASTROSAT CZTI

Data Quality Report

Orbit 23062

Creation date: 2024-06-27T18:49:15.835170
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/AS1A07_049T01_9000003408_23062cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23062cztM0_level2_quad_clean.evt
Size (bytes)548,550,72090,936,000
Size523.1 MB 86.7 MB
Events in quadrant A3,621,821560,834
Events in quadrant B3,914,191572,943
Events in quadrant C3,763,871551,633
Events in quadrant D4,793,994536,645

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158172
B0166132
C0160283
D0194582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76472062.693867%
B76473264.263110%
C76462212.890400%
D76462092.733455%

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 7777 7649 0 0 0.00% 0.00%
B 7777 7649 26 26 0.33% 0.34%
C 7776 7648 1 1 0.01% 0.01%
D 7776 7648 36 36 0.46% 0.47%

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 13 254 10459 50.29 937 917 189.7
A 3 137 8928 42.22 937 917 189.7
A 0 226 7934 36.98 937 917 189.7
B 3 64 158330 864.28 934 906 182.1
B 4 216 46140 248.34 934 906 182.1
B 4 173 44176 237.56 934 906 182.1
C 14 238 143340 670.17 906 911 212.5
C 0 207 46804 215.94 906 911 212.5
C 8 128 14486 63.87 906 911 212.5
D 1 52 996640 4413.11 917 889 225.6
D 1 239 121429 534.23 917 889 225.6
D 13 174 104474 459.08 917 889 225.6

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