ASTROSAT CZTI

Data Quality Report

Orbit 28304

Creation date: 2024-06-27T19:50:16.634563
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_102T10_9000004080_28304cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28304cztM0_level2_quad_clean.evt
Size (bytes)575,190,72092,338,560
Size548.5 MB 88.1 MB
Events in quadrant A3,156,317596,006
Events in quadrant B3,412,405606,841
Events in quadrant C3,194,876581,862
Events in quadrant D7,186,830529,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140610
B0145860
C0141050
D0261850

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6913871.258498%
B69141151.663292%
C6914891.287243%
D6914110816.025456%

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 7163 6913 0 0 0.00% 0.00%
B 7164 6916 11 11 0.15% 0.16%
C 7164 6916 0 0 0.00% 0.00%
D 7164 6914 829 829 11.57% 11.99%

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 10102 56.19 818 799 165.5
A 3 137 8254 45.03 818 799 165.5
A 0 226 7017 37.56 818 799 165.5
B 10 245 105371 671.29 810 786 155.8
B 10 246 51739 327.05 810 786 155.8
B 4 200 25371 157.8 810 786 155.8
C 14 238 125982 685.18 779 781 182.7
C 3 233 33271 177.81 779 781 182.7
C 13 61 5359 25.05 779 781 182.7
D 1 52 3804496 21621.68 734 715 175.9
D 8 195 313180 1776.13 734 715 175.9
D 2 250 157947 893.75 734 715 175.9

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