ASTROSAT CZTI

Data Quality Report

Orbit 30295

Creation date: 2024-06-27T20:13:13.172054
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/AS1A10_007T01_9000004350_30295cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30295cztM0_level2_quad_clean.evt
Size (bytes)580,423,680101,206,080
Size553.5 MB 96.5 MB
Events in quadrant A3,161,153666,324
Events in quadrant B5,076,212679,983
Events in quadrant C3,725,700663,155
Events in quadrant D5,194,648621,760

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133991
B0192341
C0149651
D0196601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6216370.595238%
B62161091.753539%
C62161322.123552%
D62165488.815959%

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 7446 6217 2 2 0.03% 0.03%
B 7446 6217 1 1 0.01% 0.02%
C 7446 6217 8 8 0.11% 0.13%
D 7446 6217 397 397 5.33% 6.39%

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 8 192 13540 78.36 814 798 162.6
A 13 254 11856 68.01 814 798 162.6
A 14 239 8410 46.81 814 798 162.6
B 6 159 1812915 11720.34 819 798 154.6
B 0 190 27722 174.14 819 798 154.6
B 6 36 25187 157.74 819 798 154.6
C 3 233 414831 2213.2 799 807 187.1
C 14 238 138322 735.1 799 807 187.1
C 0 10 31353 163.29 799 807 187.1
D 1 52 1090699 5713.31 766 752 190.8
D 13 104 620914 3250.78 766 752 190.8
D 8 195 164376 857.69 766 752 190.8

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