ASTROSAT CZTI

Data Quality Report

Orbit 48112

Creation date: 2024-08-21T09:23:12.204326
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/AS1T05_223T01_9000006402_48112cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48112cztM0_level2_quad_clean.evt
Size (bytes)504,691,20078,888,960
Size481.3 MB 75.2 MB
Events in quadrant A6,477,331681,555
Events in quadrant B1,038,24342,300
Events in quadrant C2,646,458676,983
Events in quadrant D8,040,977558,738

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233761
B064411
C0124551
D0280841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60882654.352825%
B60896089100.000000%
C6089590.968960%
D6089160726.391854%

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 7228 6088 46 46 0.64% 0.76%
B 7228 6088 0 0 0.00% 0.00%
C 7229 6089 12 12 0.17% 0.20%
D 7228 6088 1590 1590 22.00% 26.12%

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 3851194 27581.36 673 657 139.6
A 13 248 16341 112.34 673 657 139.6
A 13 254 12499 84.82 673 657 139.6
B 2 177 841958 79574.73 43 42 10.6
B 4 21 11969 1127.3 43 42 10.6
B 0 198 3795 354.72 43 42 10.6
C 14 254 38218 241.38 664 665 155.6
C 14 67 8351 49.4 664 665 155.6
C 12 250 6055 34.65 664 665 155.6
D 7 67 3431487 22934.68 597 578 149.6
D 2 37 1902830 12716.03 597 578 149.6
D 2 165 128430 854.66 597 578 149.6

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