ASTROSAT CZTI

Data Quality Report

Orbit 47200

Creation date: 2024-06-27T23:32:46.901705
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_019T01_9000006302_47200cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47200cztM0_level2_quad_clean.evt
Size (bytes)509,817,600107,242,560
Size486.2 MB 102.3 MB
Events in quadrant A6,385,572721,790
Events in quadrant B4,900,617728,016
Events in quadrant C3,361,666715,939
Events in quadrant D3,743,403649,089

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234681
B0185661
C0141062
D0152561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61982393.856083%
B61985188.357535%
C61981542.484672%
D61982153.468861%

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 7398 6198 6 6 0.08% 0.10%
B 7398 6198 275 275 3.72% 4.44%
C 7398 6198 93 93 1.26% 1.50%
D 7398 6198 168 168 2.27% 2.71%

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 3459098 22254.27 751 737 155.4
A 0 243 11752 70.88 751 737 155.4
A 13 254 11473 69.09 751 737 155.4
B 0 190 1254877 8700.79 741 720 144.1
B 15 201 255225 1765.64 741 720 144.1
B 5 172 163834 1131.61 741 720 144.1
C 14 254 468865 2712.74 734 738 172.6
C 8 111 8247 43.51 734 738 172.6
C 15 208 7380 38.49 734 738 172.6
D 2 249 615606 3354.27 731 709 183.3
D 13 70 99424 538.49 731 709 183.3
D 1 47 96079 520.24 731 709 183.3

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