ASTROSAT CZTI

Data Quality Report

Orbit 48393

Creation date: 2024-09-09T06:07:35.120919
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_029T01_9000006426_48393cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48393cztM0_level2_quad_clean.evt
Size (bytes)578,638,080123,264,000
Size551.8 MB 117.6 MB
Events in quadrant A8,279,835808,759
Events in quadrant B5,195,442814,141
Events in quadrant C3,548,736813,419
Events in quadrant D3,785,412748,622

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0299642
B0207842
C0165482
D0172423

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78673995.071819%
B78684876.189629%
C7868801.016777%
D7867811.029617%

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 7887 7868 51 51 0.65% 0.65%
B 7888 7869 163 163 2.07% 2.07%
C 7888 7869 3 3 0.04% 0.04%
D 7887 7868 21 21 0.27% 0.27%

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 4548018 23979.27 893 869 189.6
A 13 248 270071 1419.63 893 869 189.6
A 13 254 17218 86.22 893 869 189.6
B 12 16 608897 3431.32 882 854 177.2
B 4 21 582070 3279.93 882 854 177.2
B 5 255 268784 1511.99 882 854 177.2
C 1 3 35067 162.08 885 890 210.9
C 15 208 28590 131.36 885 890 210.9
C 12 249 12516 55.13 885 890 210.9
D 2 249 304376 1354.5 891 860 224.1
D 2 234 42602 186.28 891 860 224.1
D 2 233 36639 159.67 891 860 224.1

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