ASTROSAT CZTI

Data Quality Report

Orbit 43995

Creation date: 2024-06-27T22:58:04.658105
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_065T06_9000005924_43995cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43995cztM0_level2_quad_clean.evt
Size (bytes)517,849,920109,748,160
Size493.9 MB 104.7 MB
Events in quadrant A7,752,643561,735
Events in quadrant B3,480,514829,438
Events in quadrant C3,141,311786,872
Events in quadrant D4,274,290679,066

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278012
B0147822
C0138862
D0173592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6689202330.243684%
B6689841.255793%
C6688160.239234%
D66883114.650120%

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 7934 6690 1165 1165 14.68% 17.41%
B 7934 6690 33 33 0.42% 0.49%
C 7933 6689 5 5 0.06% 0.07%
D 7933 6689 256 256 3.23% 3.83%

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 2402138 18919.46 612 601 126.9
A 14 238 1514196 11924.2 612 601 126.9
A 10 83 908793 7154.8 612 601 126.9
B 5 172 240335 1543.56 787 764 155.2
B 0 245 34989 220.51 787 764 155.2
B 12 111 18825 116.37 787 764 155.2
C 14 254 77152 419.86 773 779 181.9
C 3 233 35528 191.03 773 779 181.9
C 9 237 9426 47.54 773 779 181.9
D 5 235 698508 3727.07 747 728 187.2
D 13 249 172935 919.81 747 728 187.2
D 13 171 140332 745.67 747 728 187.2

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