ASTROSAT CZTI

Data Quality Report

Orbit 17411

Creation date: 2024-06-27T17:36:10.970679
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/AS1A05_182T03_9000002576_17411cztM0_level2.evt modeM0/AS1A05_182T03_9000002576_17411cztM0_level2_quad_clean.evt
Size (bytes)192,692,16032,751,360
Size183.8 MB 31.2 MB
Events in quadrant A1,078,456230,040
Events in quadrant B1,096,756232,277
Events in quadrant C1,086,938212,682
Events in quadrant D2,440,081175,424

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044471
B044821
C043831
D085791

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1933271.396793%
B1933351.810657%
C1933361.862390%
D193355228.556648%

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 3243 1934 0 0 0.00% 0.00%
B 3243 1934 0 0 0.00% 0.00%
C 3243 1934 0 0 0.00% 0.00%
D 3243 1934 463 463 14.28% 23.94%

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 0 226 2470 38.61 280 274 56.9
A 12 194 2048 31.19 280 274 56.9
A 3 137 1945 29.38 280 274 56.9
B 0 230 16666 315.35 274 269 52.0
B 12 111 5844 107.22 274 269 52.0
B 11 111 5046 91.87 274 269 52.0
C 14 238 40829 667.04 258 259 60.8
C 5 218 13319 214.73 258 259 60.8
C 3 233 12360 198.96 258 259 60.8
D 11 176 1370415 22902.04 241 234 59.8
D 13 232 83165 1386.16 241 234 59.8
D 10 70 33396 554.29 241 234 59.8

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