ASTROSAT CZTI

Data Quality Report

Orbit 44660

Creation date: 2024-06-27T23:05:01.326238
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_072T01_9000006008_44660cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44660cztM0_level2_quad_clean.evt
Size (bytes)475,603,200105,010,560
Size453.6 MB 100.1 MB
Events in quadrant A5,158,129705,255
Events in quadrant B3,120,884736,894
Events in quadrant C3,554,402683,001
Events in quadrant D5,274,438607,321

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206091
B0138131
C0152181
D0201021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64081892.949438%
B6408711.107990%
C64082493.885768%
D64094597.161804%

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 7528 6409 74 74 0.98% 1.15%
B 7528 6409 23 23 0.31% 0.36%
C 7528 6409 189 189 2.51% 2.95%
D 7529 6410 366 366 4.86% 5.71%

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 1830455 12493.66 707 690 146.5
A 15 223 285749 1946.39 707 690 146.5
A 13 248 254137 1730.54 707 690 146.5
B 0 186 64314 464.04 712 691 137.1
B 0 183 60244 434.35 712 691 137.1
B 4 171 56015 403.51 712 691 137.1
C 12 2 618452 3796.14 692 695 162.7
C 14 254 174904 1070.52 692 695 162.7
C 2 14 21168 125.81 692 695 162.7
D 1 52 1932393 11312.6 681 660 170.8
D 13 249 153778 896.69 681 660 170.8
D 2 249 150096 875.12 681 660 170.8

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