ASTROSAT CZTI

Data Quality Report

Orbit 03207

Creation date: 2024-06-27T14:25:50.009488
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/AS1G05_221T01_9000000438_03207cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03207cztM0_level2_quad_clean.evt
Size (bytes)2,074,196,160199,304,640
Size1.9 GB 190.1 MB
Events in quadrant A7,993,7591,308,487
Events in quadrant B8,650,9781,305,096
Events in quadrant C35,728,425931,775
Events in quadrant D9,233,3331,247,370

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0369094
B0378953
C01184973
D0402733

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179902151.195108%
B179902271.261812%
C17990990555.058366%
D179902031.128405%

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 19085 17992 5 5 0.03% 0.03%
B 19085 17993 11 11 0.06% 0.06%
C 19084 17989 9683 9683 50.74% 53.83%
D 19085 17995 91 91 0.48% 0.51%

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 0 118 43665 100.35 2020 1966 415.6
A 0 199 38589 88.13 2020 1966 415.6
A 12 247 34683 78.73 2020 1966 415.6
B 15 204 399086 1005.52 2055 2005 394.9
B 2 249 103252 256.39 2055 2005 394.9
B 4 80 62730 153.77 2055 2005 394.9
C 12 206 28484872 81149.4 1517 1524 351.0
C 14 223 622770 1769.94 1517 1524 351.0
C 7 220 525925 1494.02 1517 1524 351.0
D 13 114 601602 1250.66 1936 1882 479.5
D 13 120 326136 676.2 1936 1882 479.5
D 5 233 268196 555.37 1936 1882 479.5

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