ASTROSAT CZTI

Data Quality Report

Orbit 48349

Creation date: 2024-09-06T08:54:15.532065
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_037T05_9000006424_48349cztM0_level2.fits modeM0/AS1A13_037T05_9000006424_48349cztM0_level2_quad_clean.evt
Size (bytes)525,067,200120,712,320
Size500.7 MB 115.1 MB
Events in quadrant A8,035,767796,262
Events in quadrant B3,864,997816,527
Events in quadrant C3,301,425796,718
Events in quadrant D3,649,339721,052

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290200
B0168480
C0157200
D0166390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75363154.179936%
B75371842.441290%
C7537150.199018%
D75371091.446199%

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 7536 7536 57 57 0.76% 0.76%
B 7537 7537 133 133 1.76% 1.76%
C 7537 7537 3 3 0.04% 0.04%
D 7537 7537 101 101 1.34% 1.34%

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 4542370 25789.87 835 816 176.1
A 13 248 245962 1392.1 835 816 176.1
A 13 254 14774 79.26 835 816 176.1
B 4 21 443903 2691.39 827 802 164.6
B 0 200 34184 202.76 827 802 164.6
B 0 197 32432 192.12 827 802 164.6
C 3 110 76469 390.81 817 823 193.6
C 1 3 17766 87.53 817 823 193.6
C 12 249 9805 46.4 817 823 193.6
D 2 165 214460 1039.45 815 789 205.6
D 1 232 143121 692.4 815 789 205.6
D 2 120 41748 199.25 815 789 205.6

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