ASTROSAT CZTI

Data Quality Report

Orbit 38043

Creation date: 2024-06-27T21:47:41.760002
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/AS1A11_024T01_9000005358_38043cztM0_level2.fits modeM0/AS1A11_024T01_9000005358_38043cztM0_level2_quad_clean.evt
Size (bytes)317,260,80095,889,600
Size302.6 MB 91.4 MB
Events in quadrant A2,862,022654,774
Events in quadrant B2,741,132677,219
Events in quadrant C2,670,808647,522
Events in quadrant D3,089,219581,014

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113223
B0108572
C0104812
D0119912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4888240.490998%
B4888360.736498%
C488860.122750%
D48881062.168576%

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 7009 4889 7 7 0.10% 0.14%
B 7009 4889 18 18 0.26% 0.37%
C 7009 4889 1 1 0.01% 0.02%
D 7009 4889 96 96 1.37% 1.96%

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 10 83 352021 2800.82 623 614 125.5
A 12 227 56570 445.99 623 614 125.5
A 12 189 15998 122.62 623 614 125.5
B 5 172 115614 987.93 617 604 116.4
B 5 255 61843 526.04 617 604 116.4
B 4 171 53087 450.83 617 604 116.4
C 15 214 212274 1517.98 604 611 139.4
C 3 233 68543 487.19 604 611 139.4
C 1 23 16751 115.75 604 611 139.4
D 12 233 270418 1844.67 601 587 146.3
D 1 47 143717 978.49 601 587 146.3
D 7 223 118258 804.45 601 587 146.3

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