ASTROSAT CZTI

Data Quality Report

Orbit 28327

Creation date: 2024-06-27T19:50:32.147308
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_116T01_9000004082_28327cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28327cztM0_level2_quad_clean.evt
Size (bytes)519,154,56096,719,040
Size495.1 MB 92.2 MB
Events in quadrant A3,149,958638,052
Events in quadrant B4,409,705657,480
Events in quadrant C3,517,328621,213
Events in quadrant D4,231,683585,779

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130170
B0169330
C0142630
D0165400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6108160.261952%
B61084146.777996%
C6107751.228099%
D61071332.177829%

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 7508 6109 0 0 0.00% 0.00%
B 7508 6109 269 269 3.58% 4.40%
C 7507 6108 0 0 0.00% 0.00%
D 7507 6108 109 109 1.45% 1.78%

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 10266 58.92 816 804 160.6
A 3 137 7422 41.21 816 804 160.6
A 0 226 6891 37.9 816 804 160.6
B 10 245 1173909 7823.44 807 789 149.9
B 10 246 54668 359.31 807 789 149.9
B 0 230 19871 127.25 807 789 149.9
C 3 233 303785 1656.04 791 797 183.0
C 14 238 130961 711.44 791 797 183.0
C 13 61 5449 25.43 791 797 183.0
D 1 52 979548 5290.66 779 758 185.0
D 8 195 261318 1408.41 779 758 185.0
D 2 234 22917 119.77 779 758 185.0

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