ASTROSAT CZTI

Data Quality Report

Orbit 46379

Creation date: 2024-06-27T23:22:26.325794
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_070T06_9000006202_46379cztM0_level2.fits modeM0/AS1A13_070T06_9000006202_46379cztM0_level2_quad_clean.evt
Size (bytes)569,744,640130,089,600
Size543.4 MB 124.1 MB
Events in quadrant A6,886,033859,144
Events in quadrant B4,385,552882,794
Events in quadrant C3,610,853872,996
Events in quadrant D5,583,888764,361

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256540
B0187010
C0167561
D0222130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80461491.851852%
B80472282.833354%
C8046240.298285%
D80464305.344270%

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 8046 8046 0 0 0.00% 0.00%
B 8047 8047 72 72 0.89% 0.89%
C 8046 8046 1 1 0.01% 0.01%
D 8046 8046 321 321 3.99% 3.99%

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 3295589 17147.44 911 889 192.1
A 0 247 47640 243.32 911 889 192.1
A 13 254 13901 67.72 911 889 192.1
B 4 171 514729 2854.81 909 881 180.0
B 5 255 91676 504.43 909 881 180.0
B 5 32 86627 476.38 909 881 180.0
C 2 14 24821 110.57 913 917 216.2
C 14 254 13295 57.25 913 917 216.2
C 11 16 7910 32.35 913 917 216.2
D 13 249 1139206 5048.27 885 856 225.5
D 1 52 723716 3205.68 885 856 225.5
D 8 176 147693 651.18 885 856 225.5

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