ASTROSAT CZTI

Data Quality Report

Orbit 34181

Creation date: 2024-06-27T20:57:30.739697
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/AS1A11_047T15_9000004882_34181cztM0_level2.evt modeM0/AS1A11_047T15_9000004882_34181cztM0_level2_quad_clean.evt
Size (bytes)468,051,84070,657,920
Size446.4 MB 67.4 MB
Events in quadrant A2,623,464445,167
Events in quadrant B3,445,398446,902
Events in quadrant C3,927,307432,783
Events in quadrant D3,789,773413,872

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115202
B0140191
C0152631
D0150841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A573520.034874%
B57351432.493461%
C57352283.975588%
D5735390.680035%

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 7048 5736 0 0 0.00% 0.00%
B 7048 5736 88 88 1.25% 1.53%
C 7048 5736 187 187 2.65% 3.26%
D 7048 5736 24 24 0.34% 0.42%

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 13905 97.09 673 660 136.4
A 13 254 10219 70.07 673 660 136.4
A 13 6 10003 68.49 673 660 136.4
B 5 172 401552 3142.31 660 644 127.6
B 5 31 155058 1210.29 660 644 127.6
B 0 197 92025 716.24 660 644 127.6
C 14 254 439426 2938.07 642 645 149.3
C 15 214 259212 1731.36 642 645 149.3
C 0 10 258070 1723.72 642 645 149.3
D 8 195 913617 5210.41 645 631 175.2
D 7 38 124497 706.9 645 631 175.2
D 10 118 118076 670.26 645 631 175.2

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