ASTROSAT CZTI

Data Quality Report

Orbit 43536

Creation date: 2024-06-27T22:52:54.512235
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/AS1A12_102T01_9000005876_43536cztM0_level2.fits modeM0/AS1A12_102T01_9000005876_43536cztM0_level2_quad_clean.evt
Size (bytes)1,443,807,36075,303,360
Size1.3 GB 71.8 MB
Events in quadrant A9,049,620746,719
Events in quadrant B9,580,193731,435
Events in quadrant C19,386,215238,773
Events in quadrant D14,866,82345,746

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0321391
B0335026
C0624411
D0491851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7305144319.753593%
B7305225830.910335%
C7305727499.575633%
D73057305100.000000%

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 7335 7306 717 717 9.78% 9.81%
B 7334 7304 1675 1675 22.84% 22.93%
C 7334 7304 7137 7137 97.31% 97.71%
D 7334 7304 4231 4231 57.69% 57.93%

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 0 228 3754733 23945.29 759 743 156.8
A 10 83 673756 4292.9 759 743 156.8
A 0 227 581022 3701.38 759 743 156.8
B 3 25 3794798 27709.25 716 697 136.9
B 3 42 1931117 14098.33 716 697 136.9
B 0 199 219586 1598.6 716 697 136.9
C 15 142 6281516 103998.7 253 254 60.4
C 15 126 6113791 101221.68 253 254 60.4
C 15 158 1844648 30537.58 253 254 60.4
D 4 216 6898417 153257.24 71 65 45.0
D 8 160 1321551 29358.79 71 65 45.0
D 2 153 1222833 27165.63 71 65 45.0

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