ASTROSAT CZTI

Data Quality Report

Orbit 48606

Creation date: 2024-09-23T09:07:34.541992
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_037T01_9000006436_48606cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48606cztM0_level2_quad_clean.evt
Size (bytes)457,283,520104,670,720
Size436.1 MB 99.8 MB
Events in quadrant A6,597,300683,831
Events in quadrant B4,149,951706,389
Events in quadrant C2,711,602705,934
Events in quadrant D2,975,308629,949

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238082
B0168082
C0129252
D0136602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63482674.206049%
B63484657.325142%
C6348230.362319%
D6348681.071204%

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 7553 6349 136 136 1.80% 2.14%
B 7553 6349 274 274 3.63% 4.32%
C 7553 6349 3 3 0.04% 0.05%
D 7553 6349 41 41 0.54% 0.65%

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 3900661 27439.82 683 671 142.1
A 13 248 39909 276.07 683 671 142.1
A 0 31 11754 77.98 683 671 142.1
B 12 16 1418393 10697.51 680 658 132.5
B 0 183 22497 164.79 680 658 132.5
B 0 186 18559 135.07 680 658 132.5
C 12 249 27007 162.37 687 691 162.1
C 14 254 6032 32.95 687 691 162.1
C 13 61 4686 24.65 687 691 162.1
D 2 165 178750 1073.6 670 651 165.9
D 10 199 119214 714.71 670 651 165.9
D 2 249 39640 235.03 670 651 165.9

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