ASTROSAT CZTI

Data Quality Report

Orbit 48199

Creation date: 2024-08-27T12:53:45.342390
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_9000006414_48199cztM0_level2.fits modeM0/AS1A13_037T05_9000006414_48199cztM0_level2_quad_clean.evt
Size (bytes)493,418,88082,555,200
Size470.6 MB 78.7 MB
Events in quadrant A6,649,758726,899
Events in quadrant B1,067,45843,639
Events in quadrant C2,825,539704,409
Events in quadrant D7,242,167595,412

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242881
B065781
C0127781
D0257651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60972494.083976%
B6098609499.934405%
C6098460.754346%
D6098121219.875369%

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 7252 6098 33 33 0.46% 0.54%
B 7252 6097 0 0 0.00% 0.00%
C 7253 6099 13 13 0.18% 0.21%
D 7253 6099 959 959 13.22% 15.72%

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 3871699 26394.07 706 695 146.7
A 13 248 32371 215.98 706 695 146.7
A 13 254 12688 81.77 706 695 146.7
B 2 177 842346 77093.62 44 42 10.9
B 4 21 28258 2582.53 44 42 10.9
B 0 200 9811 894.13 44 42 10.9
C 12 2 67812 418.0 686 691 160.6
C 0 207 48889 300.16 686 691 160.6
C 11 16 17178 102.67 686 691 160.6
D 2 165 4072532 25338.57 635 614 160.7
D 6 239 423286 2630.19 635 614 160.7
D 12 233 94246 582.65 635 614 160.7

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