ASTROSAT CZTI

Data Quality Report

Orbit 46592

Creation date: 2024-06-27T23:25:11.453492
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_092T03_9000006234_46592cztM0_level2.fits modeM0/AS1A13_092T03_9000006234_46592cztM0_level2_quad_clean.evt
Size (bytes)491,247,360109,336,320
Size468.5 MB 104.3 MB
Events in quadrant A6,600,157709,368
Events in quadrant B3,322,710755,699
Events in quadrant C3,220,923734,107
Events in quadrant D4,528,932651,637

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241912
B0141832
C0141222
D0179062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65933625.490672%
B65932023.063856%
C6593991.501593%
D65933014.565448%

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 7608 6594 18 18 0.24% 0.27%
B 7608 6594 11 11 0.14% 0.17%
C 7608 6594 6 6 0.08% 0.09%
D 7608 6594 157 157 2.06% 2.38%

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 3498476 21965.22 769 752 159.2
A 9 191 39247 241.74 769 752 159.2
A 15 235 35450 217.9 769 752 159.2
B 12 0 81493 523.23 781 758 154.3
B 0 245 31524 199.39 781 758 154.3
B 0 190 25272 158.87 781 758 154.3
C 14 254 106663 581.27 766 769 182.2
C 3 233 35925 192.98 766 769 182.2
C 12 249 33084 177.38 766 769 182.2
D 1 52 878525 4625.2 754 731 189.8
D 13 249 271532 1426.88 754 731 189.8
D 2 37 127695 668.99 754 731 189.8

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