ASTROSAT CZTI

Data Quality Report

Orbit 19017

Creation date: 2024-06-27T17:58:07.035453
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/AS1A06_003T05_9000002830_19017cztM0_level2.evt modeM0/AS1A06_003T05_9000002830_19017cztM0_level2_quad_clean.evt
Size (bytes)577,938,24089,605,440
Size551.2 MB 85.5 MB
Events in quadrant A6,597,062552,041
Events in quadrant B3,414,201603,296
Events in quadrant C3,128,083571,831
Events in quadrant D3,936,379546,269

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236591
B0142271
C0131921
D0160732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6311136721.660593%
B6311651.029948%
C6311590.934876%
D63101041.648177%

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 7516 6312 1058 1058 14.08% 16.76%
B 7516 6312 20 20 0.27% 0.32%
C 7516 6312 2 2 0.03% 0.03%
D 7515 6311 66 66 0.88% 1.05%

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 14 235 3869462 27275.5 704 689 141.8
A 8 192 14368 96.44 704 689 141.8
A 0 226 6173 38.66 704 689 141.8
B 3 112 134269 899.25 786 766 148.5
B 0 189 78187 521.49 786 766 148.5
B 7 220 32112 211.14 786 766 148.5
C 14 238 119028 674.93 753 759 175.2
C 3 233 66974 377.87 753 759 175.2
C 13 61 5211 25.41 753 759 175.2
D 7 238 724184 3952.65 752 730 183.0
D 1 52 335525 1829.18 752 730 183.0
D 2 234 27593 146.77 752 730 183.0

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