ASTROSAT CZTI

Data Quality Report

Orbit 06206

Creation date: 2024-06-27T15:04:06.052755
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/AS1G06_103T01_9000000812_06206cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06206cztM0_level2_quad_clean.evt
Size (bytes)396,947,52083,934,720
Size378.6 MB 80.0 MB
Events in quadrant A2,886,163531,058
Events in quadrant B3,041,908539,051
Events in quadrant C2,777,482525,797
Events in quadrant D2,888,900508,167

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014513
B014010
C014315
D014317

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197
B0198
C0208
D0198

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144201699
B0147591694
C0142881592
D0146581608

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6248731.168374%
B6255941.502798%
C6267380.606351%
D6302560.888607%

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 14806 6430 2 2 0.01% 0.03%
B 14806 6423 12 12 0.08% 0.19%
C 14806 6441 0 0 0.00% 0.00%
D 14806 6441 14 14 0.09% 0.22%

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 8 15 44139 288.08 731 714 150.7
A 4 2 16599 105.38 731 714 150.7
A 12 194 6858 40.76 731 714 150.7
B 0 219 41041 282.84 737 718 142.6
B 4 52 31842 218.31 737 718 142.6
B 15 204 22272 151.19 737 718 142.6
C 1 16 11794 67.19 708 712 164.9
C 13 61 5621 29.76 708 712 164.9
C 8 222 2229 9.2 708 712 164.9
D 5 97 38455 215.27 715 691 175.4
D 12 221 30010 167.13 715 691 175.4
D 2 136 29457 163.98 715 691 175.4

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