ASTROSAT CZTI

Data Quality Report

Orbit 23049

Creation date: 2024-06-27T18:49:50.538984
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_054T01_9000003406_23049cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23049cztM0_level2_quad_clean.evt
Size (bytes)487,445,760107,254,080
Size464.9 MB 102.3 MB
Events in quadrant A3,267,732697,874
Events in quadrant B3,460,764709,793
Events in quadrant C3,456,273673,082
Events in quadrant D4,085,114662,858

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146901
B0150311
C0149571
D0171211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72451542.125604%
B72451892.608696%
C72451842.539683%
D72462823.891802%

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 7430 7246 0 0 0.00% 0.00%
B 7430 7246 10 10 0.13% 0.14%
C 7430 7246 1 1 0.01% 0.01%
D 7431 7247 121 121 1.63% 1.67%

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 11414 62.09 845 825 170.6
A 3 137 7677 40.17 845 825 170.6
A 0 226 7150 37.08 845 825 170.6
B 0 189 60829 370.76 843 821 161.9
B 4 216 30262 181.9 843 821 161.9
B 0 190 26386 157.95 843 821 161.9
C 3 233 130220 693.31 805 807 186.7
C 14 238 127654 679.56 805 807 186.7
C 0 10 17974 91.97 805 807 186.7
D 1 52 618526 3130.03 812 785 197.4
D 13 153 256847 1297.44 812 785 197.4
D 2 234 32211 159.23 812 785 197.4

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