ASTROSAT CZTI

Data Quality Report

Orbit 46509

Creation date: 2024-06-27T23:24:03.123861
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/AS1A13_068T07_9000006222_46509cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46509cztM0_level2_quad_clean.evt
Size (bytes)554,063,040115,197,120
Size528.4 MB 109.9 MB
Events in quadrant A6,866,827769,781
Events in quadrant B4,638,235778,490
Events in quadrant C3,565,788758,077
Events in quadrant D4,877,289676,515

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256360
B0186150
C0157880
D0194750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72491201.655401%
B72492012.772796%
C7248420.579470%
D72492813.876397%

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 7249 7249 15 15 0.21% 0.21%
B 7249 7249 110 110 1.52% 1.52%
C 7248 7248 27 27 0.37% 0.37%
D 7249 7249 224 224 3.09% 3.09%

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 10 83 3490719 20653.08 808 791 169.0
A 0 247 112549 661.37 808 791 169.0
A 13 248 58512 341.59 808 791 169.0
B 5 255 335427 2097.78 804 779 159.5
B 3 112 253132 1581.91 804 779 159.5
B 8 234 229647 1434.69 804 779 159.5
C 9 54 182704 968.89 794 795 187.8
C 14 254 131317 695.19 794 795 187.8
C 1 3 59250 311.34 794 795 187.8
D 7 80 537816 2704.1 785 760 198.6
D 13 249 317737 1595.99 785 760 198.6
D 5 171 240969 1209.46 785 760 198.6

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