ASTROSAT CZTI

Data Quality Report

Orbit 46432

Creation date: 2024-06-27T23:23:08.561396
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_062T01_9000006208_46432cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46432cztM0_level2_quad_clean.evt
Size (bytes)469,926,720113,333,760
Size448.2 MB 108.1 MB
Events in quadrant A5,970,725748,704
Events in quadrant B3,330,658790,758
Events in quadrant C3,260,476756,120
Events in quadrant D4,330,533684,632

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217842
B0139272
C0138962
D0172702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64783395.233097%
B64782123.272615%
C64781071.651744%
D64772864.415625%

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 7578 6478 9 9 0.12% 0.14%
B 7578 6478 13 13 0.17% 0.20%
C 7578 6479 0 0 0.00% 0.00%
D 7577 6478 157 157 2.07% 2.42%

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 2875156 17540.12 797 784 163.9
A 13 254 10489 59.22 797 784 163.9
A 3 137 9159 51.11 797 784 163.9
B 0 189 94121 593.74 798 774 157.2
B 10 128 40966 255.64 798 774 157.2
B 0 190 23913 147.18 798 774 157.2
C 3 233 71821 381.94 789 795 186.0
C 14 254 45348 239.58 789 795 186.0
C 9 54 41195 217.25 789 795 186.0
D 13 249 1028973 5225.7 785 762 196.8
D 8 129 137680 695.86 785 762 196.8
D 2 249 59136 296.68 785 762 196.8

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