ASTROSAT CZTI

Data Quality Report

Orbit 47712

Creation date: 2024-07-25T00:35:01.600813
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/AS1T05_213T01_9000006344_47712cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47712cztM0_level2_quad_clean.evt
Size (bytes)565,571,520120,136,320
Size539.4 MB 114.6 MB
Events in quadrant A7,605,448791,336
Events in quadrant B4,299,344806,365
Events in quadrant C3,462,199794,160
Events in quadrant D4,980,323717,568

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280910
B0178340
C0161100
D0200822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75931992.620835%
B75931281.685763%
C7594400.526732%
D75932212.910576%

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 7593 7593 2 2 0.03% 0.03%
B 7593 7593 7 7 0.09% 0.09%
C 7594 7594 16 16 0.21% 0.21%
D 7593 7593 227 227 2.99% 2.99%

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 4306813 24736.5 833 813 174.1
A 13 248 35330 198.29 833 813 174.1
A 0 243 30022 167.8 833 813 174.1
B 4 21 588255 3603.67 828 803 163.0
B 0 190 227708 1391.92 828 803 163.0
B 0 200 98228 597.64 828 803 163.0
C 12 2 268708 1396.25 816 819 191.9
C 12 250 11272 54.48 816 819 191.9
C 13 61 5484 24.31 816 819 191.9
D 2 165 1357567 6656.14 815 789 203.8
D 2 249 118713 578.52 815 789 203.8
D 5 171 107082 521.46 815 789 203.8

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