ASTROSAT CZTI

Data Quality Report

Orbit 08187

Creation date: 2024-06-27T15:29:12.099642
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/AS1A03_036T01_9000001128_08187cztM0_level2.evt modeM0/AS1A03_036T01_9000001128_08187cztM0_level2_quad_clean.evt
Size (bytes)601,153,920112,314,240
Size573.3 MB 107.1 MB
Events in quadrant A4,211,739699,969
Events in quadrant B4,546,670706,723
Events in quadrant C4,095,047693,092
Events in quadrant D4,734,848670,230

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01840
C01840
D01840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185573
B0192712
C0184672
D0203062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91061151.262904%
B91061661.822974%
C9106951.043268%
D91061491.636284%

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 10836 9106 0 0 0.00% 0.00%
B 10836 9106 31 31 0.29% 0.34%
C 10836 9106 0 0 0.00% 0.00%
D 10836 9106 48 48 0.44% 0.53%

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 8 15 27432 118.77 1079 1052 222.1
A 13 14 20239 86.38 1079 1052 222.1
A 0 226 10245 41.39 1079 1052 222.1
B 10 16 121512 586.32 1081 1052 205.4
B 0 214 107943 520.28 1081 1052 205.4
B 4 81 43165 204.98 1081 1052 205.4
C 13 61 8041 28.81 1048 1049 242.7
C 14 67 3455 9.91 1048 1049 242.7
C 3 202 2668 6.67 1048 1049 242.7
D 1 52 467404 1687.04 1038 1013 276.5
D 14 34 117876 422.72 1038 1013 276.5
D 6 225 75004 267.64 1038 1013 276.5

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