ASTROSAT CZTI

Data Quality Report

Orbit 30742

Creation date: 2024-06-27T20:19:06.078223
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_053T35_9000004438_30742cztM0_level2.evt modeM0/AS1A10_053T35_9000004438_30742cztM0_level2_quad_clean.evt
Size (bytes)551,986,560101,934,720
Size526.4 MB 97.2 MB
Events in quadrant A3,638,775665,090
Events in quadrant B5,179,735673,673
Events in quadrant C3,591,232655,198
Events in quadrant D3,872,013644,808

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149842
B0196852
C0146812
D0157552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6429661.026598%
B6429701.088816%
C64291512.348732%
D64291742.706486%

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 7559 6429 27 27 0.36% 0.42%
B 7559 6429 3 3 0.04% 0.05%
C 7559 6429 3 3 0.04% 0.05%
D 7559 6430 150 150 1.98% 2.33%

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 0 13 422347 2514.77 829 813 167.6
A 8 192 15770 89.23 829 813 167.6
A 13 254 12270 68.35 829 813 167.6
B 6 159 1874269 11873.74 827 808 157.8
B 15 33 21891 133.62 827 808 157.8
B 12 111 19334 117.42 827 808 157.8
C 3 233 190706 1005.65 808 815 188.8
C 14 238 156333 823.62 808 815 188.8
C 0 10 37954 196.69 808 815 188.8
D 8 195 392940 1891.71 805 791 207.3
D 12 227 175690 843.7 805 791 207.3
D 13 174 156751 752.34 805 791 207.3

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