ASTROSAT CZTI

Data Quality Report

Orbit 46564

Creation date: 2024-06-27T23:24:48.871978
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/AS1C03_005T02_9000006230_46564cztM0_level2.fits modeM0/AS1C03_005T02_9000006230_46564cztM0_level2_quad_clean.evt
Size (bytes)549,377,28099,973,440
Size523.9 MB 95.3 MB
Events in quadrant A5,887,046678,598
Events in quadrant B2,844,413711,146
Events in quadrant C2,742,797684,153
Events in quadrant D8,367,417507,918

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212001
B0130711
C0130091
D0292851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63752023.168627%
B6376731.144918%
C6376470.737139%
D6376154824.278545%

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 7160 6375 22 22 0.31% 0.35%
B 7161 6376 1 1 0.01% 0.02%
C 7161 6376 2 2 0.03% 0.03%
D 7161 6376 1518 1518 21.20% 23.81%

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 2969809 20528.8 695 679 144.6
A 13 248 129384 889.88 695 679 144.6
A 15 235 60992 417.01 695 679 144.6
B 0 245 32572 233.68 693 670 136.5
B 2 2 32314 231.79 693 670 136.5
B 3 112 22179 157.55 693 670 136.5
C 12 2 26572 158.74 691 693 163.0
C 12 249 7580 42.24 691 693 163.0
C 14 254 6049 32.85 691 693 163.0
D 14 34 2393752 15024.5 636 616 159.3
D 13 249 1283220 8052.4 636 616 159.3
D 1 52 895566 5618.64 636 616 159.3

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