ASTROSAT CZTI

Data Quality Report

Orbit 21465

Creation date: 2024-06-27T18:28:11.184740
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/AS1A06_005T09_9000003168_21465cztM0_level2.evt modeM0/AS1A06_005T09_9000003168_21465cztM0_level2_quad_clean.evt
Size (bytes)499,656,96066,058,560
Size476.5 MB 63.0 MB
Events in quadrant A3,446,585392,949
Events in quadrant B3,665,790403,544
Events in quadrant C3,484,093391,888
Events in quadrant D4,118,508382,022

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139182
B0147102
C0142492
D0162664

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6152621.007802%
B6152971.576723%
C61521201.950585%
D6151791.284344%

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 7482 6152 0 0 0.00% 0.00%
B 7482 6152 10 10 0.13% 0.16%
C 7482 6152 0 0 0.00% 0.00%
D 7481 6151 29 29 0.39% 0.47%

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 11 47 80544 461.76 874 861 172.6
A 13 254 8434 43.89 874 861 172.6
A 0 226 7469 38.29 874 861 172.6
B 0 197 186436 1136.47 878 858 163.3
B 0 190 24199 142.94 878 858 163.3
B 0 230 22697 133.74 878 858 163.3
C 14 238 136980 704.91 849 858 193.1
C 3 233 37131 187.84 849 858 193.1
C 13 61 5971 26.48 849 858 193.1
D 13 174 425387 2082.58 855 835 203.9
D 1 20 232723 1137.49 855 835 203.9
D 1 52 139816 681.75 855 835 203.9

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