ASTROSAT CZTI

Data Quality Report

Orbit 05783

Creation date: 2024-06-27T14:59:05.455316
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/AS1A02_106T01_9000000744_05783cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05783cztM0_level2_quad_clean.evt
Size (bytes)1,020,168,000172,327,680
Size972.9 MB 164.3 MB
Events in quadrant A7,189,8371,028,095
Events in quadrant B7,677,6121,052,669
Events in quadrant C7,065,0001,039,658
Events in quadrant D7,880,009994,864

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03298315
B03352020
C03258717
D03445411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03260
B03260
C03260
D03260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160001110.693750%
B159981000.625078%
C15998670.418802%
D160011130.706206%

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 17710 16008 13 13 0.07% 0.08%
B 17710 16008 7 7 0.04% 0.04%
C 17710 16008 0 0 0.00% 0.00%
D 17710 16008 42 42 0.24% 0.26%

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 15 79 114607 302.17 1834 1791 373.3
A 0 226 17689 42.58 1834 1791 373.3
A 12 194 17565 42.25 1834 1791 373.3
B 15 204 220659 613.49 1865 1817 356.7
B 4 81 126310 349.0 1865 1817 356.7
B 0 219 43151 115.87 1865 1817 356.7
C 1 16 32549 74.16 1798 1809 414.5
C 13 61 14288 30.1 1798 1809 414.5
C 8 128 10083 19.96 1798 1809 414.5
D 8 195 538541 1230.61 1787 1736 436.2
D 12 233 191808 435.73 1787 1736 436.2
D 12 110 142886 323.58 1787 1736 436.2

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