ASTROSAT CZTI

Data Quality Report

Orbit 04456

Creation date: 2024-06-27T14:42:17.129143
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/AS1G05_253T01_9000000560_04456cztM0_level2.evt modeM0/AS1G05_253T01_9000000560_04456cztM0_level2_quad_clean.evt
Size (bytes)453,562,56067,213,440
Size432.6 MB 64.1 MB
Events in quadrant A2,915,830400,979
Events in quadrant B3,118,629403,298
Events in quadrant C2,969,997405,008
Events in quadrant D4,297,073379,547

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129862
B0132501
C0130731
D0171881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6400180.281250%
B6400250.390625%
C6400200.312500%
D64002974.640625%

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 7640 6401 0 0 0.00% 0.00%
B 7640 6401 2 2 0.03% 0.03%
C 7640 6401 0 0 0.00% 0.00%
D 7640 6401 266 266 3.48% 4.16%

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 0 13 16582 105.0 750 733 150.9
A 0 226 7745 46.45 750 733 150.9
A 12 194 7441 44.44 750 733 150.9
B 15 204 64088 440.93 765 747 143.7
B 4 48 52952 363.41 765 747 143.7
B 4 170 19155 128.14 765 747 143.7
C 14 48 42203 243.96 741 745 169.9
C 9 54 16641 93.54 741 745 169.9
C 9 247 16178 90.82 741 745 169.9
D 12 227 823305 4736.37 716 694 173.7
D 2 63 170895 979.97 716 694 173.7
D 13 235 153926 882.27 716 694 173.7

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