ASTROSAT CZTI

Data Quality Report

Orbit 43980

Creation date: 2024-06-27T22:57:54.898298
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_43980cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43980cztM0_level2_quad_clean.evt
Size (bytes)766,203,84088,801,920
Size730.7 MB 84.7 MB
Events in quadrant A14,089,64227,972
Events in quadrant B3,938,927809,296
Events in quadrant C3,161,052792,201
Events in quadrant D6,641,636584,062

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0465532
B0162752
C0140972
D0245642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6816658296.566901%
B68152874.211299%
C6815190.278797%
D6815129719.031548%

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 7986 6816 3974 3974 49.76% 58.30%
B 7985 6816 175 175 2.19% 2.57%
C 7985 6816 2 2 0.03% 0.03%
D 7985 6816 1176 1176 14.73% 17.25%

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 13379739 713620.19 82 80 18.7
A 14 238 185005 9863.2 82 80 18.7
A 10 83 135822 7239.96 82 80 18.7
B 5 172 409484 2623.66 787 762 155.8
B 4 171 296787 1900.24 787 762 155.8
B 4 158 32293 202.4 787 762 155.8
C 15 157 45483 241.65 784 792 184.9
C 14 254 28200 148.2 784 792 184.9
C 3 233 23244 121.4 784 792 184.9
D 5 235 3136686 18017.57 689 669 174.1
D 1 52 255512 1464.17 689 669 174.1
D 4 222 123002 702.85 689 669 174.1

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