ASTROSAT CZTI

Data Quality Report

Orbit 43832

Creation date: 2024-06-27T22:56:20.229065
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/AS1A13_018T01_9000005906_43832cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43832cztM0_level2_quad_clean.evt
Size (bytes)699,007,68098,945,280
Size666.6 MB 94.4 MB
Events in quadrant A7,162,429627,421
Events in quadrant B4,863,322708,994
Events in quadrant C5,211,362700,698
Events in quadrant D8,126,896497,932

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259842
B0187512
C0200982
D0286912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6607100215.165733%
B66074566.901771%
C66061692.558280%
D6606172526.112625%

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 7612 6608 857 857 11.26% 12.97%
B 7612 6608 350 350 4.60% 5.30%
C 7610 6605 112 112 1.47% 1.70%
D 7611 6607 1609 1609 21.14% 24.35%

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 15 223 3321535 22646.52 703 690 146.6
A 10 83 994633 6778.2 703 690 146.6
A 2 79 58152 391.86 703 690 146.6
B 0 200 1106754 7737.41 732 711 142.9
B 5 235 407265 2844.08 732 711 142.9
B 4 170 150727 1049.45 732 711 142.9
C 3 233 2199044 12842.54 729 732 171.2
C 14 254 90684 525.5 729 732 171.2
C 15 157 31949 182.37 729 732 171.2
D 5 235 3043685 18780.12 631 611 162.0
D 1 52 975695 6017.66 631 611 162.0
D 12 33 657306 4052.75 631 611 162.0

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