ASTROSAT CZTI

Data Quality Report

Orbit 47810

Creation date: 2024-11-13T04:22:51.825532
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_081T01_9000006354_47810cztM0_level2.fits modeM0/AS1A13_081T01_9000006354_47810cztM0_level2_quad_clean.evt
Size (bytes)465,024,960100,730,880
Size443.5 MB 96.1 MB
Events in quadrant A6,156,190666,206
Events in quadrant B3,170,743698,931
Events in quadrant C2,708,300668,084
Events in quadrant D4,695,243582,345

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228081
B0134301
C0128241
D0184161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62252353.775100%
B62261272.039833%
C6226631.011886%
D62264687.516865%

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 7270 6225 6 6 0.08% 0.10%
B 7271 6226 2 2 0.03% 0.03%
C 7271 6227 12 12 0.17% 0.19%
D 7271 6227 406 406 5.58% 6.52%

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 3473078 24491.87 687 673 141.8
A 0 31 34445 238.2 687 673 141.8
A 3 137 7928 51.17 687 673 141.8
B 0 155 149669 1109.26 686 665 134.3
B 10 7 123348 913.32 686 665 134.3
B 5 255 102873 760.89 686 665 134.3
C 14 254 65490 414.0 673 673 156.6
C 12 2 17788 109.32 673 673 156.6
C 13 61 4567 24.87 673 673 156.6
D 12 2 1079593 6605.9 660 638 163.3
D 2 165 984064 6021.02 660 638 163.3
D 2 37 33876 203.5 660 638 163.3

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