ASTROSAT CZTI

Data Quality Report

Orbit 32328

Creation date: 2024-06-27T20:38:56.372063
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_005T01_9000004700_32328cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32328cztM0_level2_quad_clean.evt
Size (bytes)830,050,56079,174,080
Size791.6 MB 75.5 MB
Events in quadrant A3,657,168511,378
Events in quadrant B7,533,877447,186
Events in quadrant C8,340,236456,146
Events in quadrant D5,115,980475,421

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155022
B0276741
C0296111
D0201381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72711351.856691%
B7271108914.977307%
C7271186725.677348%
D72712843.905928%

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 7511 7272 14 14 0.19% 0.19%
B 7511 7272 639 639 8.51% 8.79%
C 7511 7272 998 998 13.29% 13.72%
D 7511 7272 182 182 2.42% 2.50%

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 216332 1231.13 872 851 175.0
A 12 189 42546 238.22 872 851 175.0
A 13 6 22240 122.2 872 851 175.0
B 6 159 1969724 12490.71 820 798 157.6
B 5 172 1890799 11990.02 820 798 157.6
B 4 80 194286 1227.47 820 798 157.6
C 0 10 4659631 25367.3 776 779 183.7
C 15 208 377051 2048.79 776 779 183.7
C 14 238 123608 668.8 776 779 183.7
D 8 195 1003318 4944.01 842 817 202.8
D 12 233 565976 2787.18 842 817 202.8
D 7 38 165917 814.22 842 817 202.8

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