ASTROSAT CZTI

Data Quality Report

Orbit 43985

Creation date: 2024-06-27T22:57:58.496019
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_43985cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43985cztM0_level2_quad_clean.evt
Size (bytes)792,812,16087,189,120
Size756.1 MB 83.2 MB
Events in quadrant A14,245,25127,029
Events in quadrant B4,841,270718,405
Events in quadrant C3,402,201752,046
Events in quadrant D6,308,421650,752

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0471902
B0192420
C0152240
D0236008

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7063687097.267450%
B706477110.914496%
C70641061.500566%
D70606379.022663%

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 7062 7062 3489 3489 49.41% 49.41%
B 7064 7064 400 400 5.66% 5.66%
C 7064 7064 40 40 0.57% 0.57%
D 7064 7061 499 499 7.06% 7.07%

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 13220656 473800.7 124 121 27.9
A 14 238 351847 12605.24 124 121 27.9
A 10 83 171086 6127.08 124 121 27.9
B 5 172 1568189 9953.5 782 754 157.5
B 4 171 43325 270.33 782 754 157.5
B 4 173 33903 210.5 782 754 157.5
C 2 14 91337 474.57 806 810 190.8
C 14 254 79718 413.66 806 810 190.8
C 15 157 47906 246.89 806 810 190.8
D 1 52 1359571 6712.84 785 757 202.4
D 7 80 1246583 6154.66 785 757 202.4
D 2 120 145891 716.99 785 757 202.4

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