ASTROSAT CZTI

Data Quality Report

Orbit 46349

Creation date: 2024-06-27T23:22:04.825647
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_070T05_9000006198_46349cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46349cztM0_level2_quad_clean.evt
Size (bytes)708,065,280124,128,000
Size675.3 MB 118.4 MB
Events in quadrant A7,724,260853,682
Events in quadrant B4,346,128879,698
Events in quadrant C6,356,742751,148
Events in quadrant D7,157,906712,534

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0285830
B0186231
C0246380
D0269480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80791722.128976%
B80791281.584354%
C8079102912.736725%
D807985110.533482%

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 8079 8079 43 43 0.53% 0.53%
B 8079 8079 55 55 0.68% 0.68%
C 8079 8078 937 937 11.60% 11.60%
D 8079 8079 679 679 8.40% 8.40%

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 3899174 20726.25 899 877 188.1
A 15 223 93068 490.16 899 877 188.1
A 7 3 74952 393.84 899 877 188.1
B 15 201 243885 1358.57 902 874 178.9
B 5 172 220615 1228.48 902 874 178.9
B 0 190 71652 395.69 902 874 178.9
C 9 54 2835343 14627.26 826 828 193.8
C 12 2 186650 958.92 826 828 193.8
C 12 249 33862 170.47 826 828 193.8
D 12 1 1446709 6689.52 857 829 216.1
D 1 52 762814 3525.41 857 829 216.1
D 2 37 356353 1644.87 857 829 216.1

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