ASTROSAT CZTI

Data Quality Report

Orbit 22547

Creation date: 2024-06-27T18:42:38.866936
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/AS1A07_148T05_9000003346_22547cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22547cztM0_level2_quad_clean.evt
Size (bytes)479,280,96086,002,560
Size457.1 MB 82.0 MB
Events in quadrant A3,276,377541,417
Events in quadrant B3,489,353553,190
Events in quadrant C3,438,082529,187
Events in quadrant D3,861,389518,652

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137962
B0143404
C0141662
D0155812

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6628620.935425%
B6627781.177003%
C66271101.659876%
D66271081.629697%

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 7687 6627 0 0 0.00% 0.00%
B 7686 6626 6 6 0.08% 0.09%
C 7686 6626 13 13 0.17% 0.20%
D 7686 6626 33 33 0.43% 0.50%

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 11614 63.79 848 829 169.1
A 3 137 7191 37.63 848 829 169.1
A 0 226 7184 37.59 848 829 169.1
B 15 33 165645 1020.62 838 816 161.5
B 0 190 21937 130.78 838 816 161.5
B 12 111 19350 114.76 838 816 161.5
C 14 238 127421 663.82 815 822 190.7
C 0 207 105580 549.29 815 822 190.7
C 10 22 19697 98.97 815 822 190.7
D 1 52 315398 1552.3 826 802 202.7
D 12 33 218388 1073.63 826 802 202.7
D 13 172 110464 541.1 826 802 202.7

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