ASTROSAT CZTI

Data Quality Report

Orbit 45668

Creation date: 2024-06-27T23:14:49.036155
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_093T12_9000006118_45668cztM0_level2.fits modeM0/AS1A13_093T12_9000006118_45668cztM0_level2_quad_clean.evt
Size (bytes)594,789,120138,548,160
Size567.2 MB 132.1 MB
Events in quadrant A7,157,178928,698
Events in quadrant B4,999,271932,092
Events in quadrant C4,171,939915,386
Events in quadrant D5,025,710824,875

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275470
B0209211
C0186270
D0209910

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85541101.285948%
B85542983.483750%
C8554720.841711%
D85541862.174421%

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 8554 8554 1 1 0.01% 0.01%
B 8554 8554 183 183 2.14% 2.14%
C 8554 8554 47 47 0.55% 0.55%
D 8554 8554 139 139 1.62% 1.62%

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 3379508 16673.81 965 943 202.6
A 13 254 11275 50.99 965 943 202.6
A 3 137 11236 50.8 965 943 202.6
B 12 16 627798 3331.67 961 930 188.2
B 5 172 160531 848.24 961 930 188.2
B 3 112 127194 671.07 961 930 188.2
C 2 14 223902 989.22 957 962 225.4
C 14 254 164237 724.48 957 962 225.4
C 9 54 27392 117.27 957 962 225.4
D 1 52 460262 1919.52 947 917 239.3
D 13 249 297747 1240.4 947 917 239.3
D 2 249 147035 610.6 947 917 239.3

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