ASTROSAT CZTI

Data Quality Report

Orbit 48203

Creation date: 2024-08-27T14:11:59.861059
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_037T05_9000006414_48203cztM0_level2.fits modeM0/AS1A13_037T05_9000006414_48203cztM0_level2_quad_clean.evt
Size (bytes)49,867,2008,012,160
Size47.6 MB 7.6 MB
Events in quadrant A892,02665,714
Events in quadrant B99,37582
Events in quadrant C291,11167,907
Events in quadrant D515,00661,171

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030701
B06141
C012501
D019241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57116028.021016%
B571571100.000000%
C57130.525394%
D571183.152364%

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 571 571 56 56 9.81% 9.81%
B 570 570 0 0 0.00% 0.00%
C 571 571 0 0 0.00% 0.00%
D 571 571 9 9 1.58% 1.58%

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 628006 39238.76 67 65 16.0
A 0 243 1621 97.23 67 65 16.0
A 13 254 958 55.8 67 65 16.0
B 2 177 78485 34978.11 4 4 2.2
B 0 200 1668 741.63 4 4 2.2
B 4 21 963 427.42 4 4 2.2
C 3 233 8790 476.34 69 69 18.3
C 12 2 4457 239.67 69 69 18.3
C 12 249 3353 179.37 69 69 18.3
D 2 165 211508 10811.38 69 66 19.6
D 11 224 8861 449.7 69 66 19.6
D 11 192 8703 441.62 69 66 19.6

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