ASTROSAT CZTI

Data Quality Report

Orbit 29533

Creation date: 2024-06-27T20:05:08.947968
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/AS1A10_073T07_9000004254_29533cztM0_level2.evt modeM0/AS1A10_073T07_9000004254_29533cztM0_level2_quad_clean.evt
Size (bytes)318,424,32034,439,040
Size303.7 MB 32.8 MB
Events in quadrant A1,466,210213,129
Events in quadrant B1,605,177219,771
Events in quadrant C1,509,751216,833
Events in quadrant D4,863,606184,656

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0642
B0642
C0655
D0631

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C021
D021

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06536230
B06957273
C06587257
D017298861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29132317.929969%
B29032448.405098%
C29072438.359133%
D2887101735.226879%

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 5049 2930 0 0 0.00% 0.00%
B 5043 2922 9 9 0.18% 0.31%
C 5045 2923 0 0 0.00% 0.00%
D 5046 2904 806 806 15.97% 27.75%

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 13 254 5593 65.34 379 369 80.0
A 3 137 4063 46.2 379 369 80.0
A 0 226 3242 35.93 379 369 80.0
B 0 229 78182 1018.47 372 360 76.4
B 5 255 31174 403.27 372 360 76.4
B 10 247 14062 179.32 372 360 76.4
C 14 238 58384 663.1 365 365 87.5
C 3 233 16688 186.55 365 365 87.5
C 2 114 6935 75.09 365 365 87.5
D 8 195 2827292 33966.58 341 331 83.2
D 12 33 303309 3640.35 341 331 83.2
D 7 238 297105 3565.81 341 331 83.2

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