ASTROSAT CZTI

Data Quality Report

Orbit 45215

Creation date: 2024-06-27T23:10:41.427482
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_049T06_9000006054_45215cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45215cztM0_level2_quad_clean.evt
Size (bytes)470,041,92099,990,720
Size448.3 MB 95.4 MB
Events in quadrant A5,009,736672,006
Events in quadrant B3,068,411705,858
Events in quadrant C3,539,616660,402
Events in quadrant D5,304,263560,092

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192251
B0130711
C0146511
D0199861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61451782.896664%
B61451161.887714%
C61462794.539538%
D614580513.100081%

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 7095 6145 10 10 0.14% 0.16%
B 7095 6145 6 6 0.08% 0.10%
C 7096 6146 152 152 2.14% 2.47%
D 7095 6145 640 640 9.02% 10.41%

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 2196520 15204.14 699 683 144.4
A 13 248 54883 375.28 699 683 144.4
A 0 243 28135 190.08 699 683 144.4
B 3 112 165758 1201.08 702 680 137.4
B 4 171 53256 382.53 702 680 137.4
B 0 246 20844 146.71 702 680 137.4
C 12 2 747133 4593.12 691 694 162.5
C 3 233 69784 425.14 691 694 162.5
C 2 14 10808 62.24 691 694 162.5
D 13 249 1949539 11678.28 668 647 166.9
D 2 249 263020 1572.21 668 647 166.9
D 4 221 147082 877.48 668 647 166.9

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