ASTROSAT CZTI

Data Quality Report

Orbit 28039

Creation date: 2024-06-27T19:47:22.819416
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/AS1A10_048T02_9000004050_28039cztM0_level2.evt modeM0/AS1A10_048T02_9000004050_28039cztM0_level2_quad_clean.evt
Size (bytes)529,326,72089,225,280
Size504.8 MB 85.1 MB
Events in quadrant A3,496,719580,862
Events in quadrant B3,550,314587,500
Events in quadrant C3,637,988554,511
Events in quadrant D4,918,026538,769

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142660
B0144580
C0150110
D0192270

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63111171.853906%
B63111322.091586%
C63111692.677864%
D63112503.961337%

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 7591 6311 0 0 0.00% 0.00%
B 7591 6311 2 2 0.03% 0.03%
C 7591 6311 0 0 0.00% 0.00%
D 7591 6311 165 165 2.17% 2.61%

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 13 254 10407 53.4 903 890 178.2
A 6 16 9495 48.29 903 890 178.2
A 3 137 8017 39.99 903 890 178.2
B 12 111 19807 113.79 893 875 166.4
B 11 111 17936 102.54 893 875 166.4
B 14 111 17694 101.09 893 875 166.4
C 3 233 159994 811.38 856 865 196.1
C 14 238 139470 706.73 856 865 196.1
C 13 61 5831 25.32 856 865 196.1
D 8 195 953199 4699.62 863 843 202.6
D 1 52 590773 2911.14 863 843 202.6
D 7 80 108860 533.03 863 843 202.6

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