ASTROSAT CZTI

Data Quality Report

Orbit 31053

Creation date: 2024-06-27T20:22:48.402160
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/AS1C06_002T01_9000004490_31053cztM0_level2.evt modeM0/AS1C06_002T01_9000004490_31053cztM0_level2_quad_clean.evt
Size (bytes)835,807,680127,336,320
Size797.1 MB 121.4 MB
Events in quadrant A3,670,855886,570
Events in quadrant B6,333,318871,836
Events in quadrant C3,880,431858,872
Events in quadrant D10,896,570691,196

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162872
B0246783
C0167182
D0378612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7867480.610144%
B78662983.788457%
C78661702.161200%
D7866257232.697686%

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 8877 7869 2 2 0.02% 0.03%
B 8876 7868 37 37 0.42% 0.47%
C 8876 7868 1 1 0.01% 0.01%
D 8876 7868 2422 2422 27.29% 30.78%

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 12 96 40708 211.83 940 918 187.8
A 13 254 14674 73.23 940 918 187.8
A 3 137 9458 45.46 940 918 187.8
B 6 159 2264352 12835.17 930 905 176.3
B 5 172 90658 508.96 930 905 176.3
B 0 155 66223 370.39 930 905 176.3
C 14 238 145745 680.12 909 911 213.0
C 0 10 90140 419.01 909 911 213.0
C 1 16 66352 307.3 909 911 213.0
D 13 174 6427255 34509.38 783 760 186.2
D 8 195 1125906 6041.88 783 760 186.2
D 12 218 136623 729.57 783 760 186.2

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