ASTROSAT CZTI

Data Quality Report

Orbit 43407

Creation date: 2024-06-27T22:51:38.317532
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/AS1A12_018T01_9000005874_43407cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43407cztM0_level2_quad_clean.evt
Size (bytes)343,379,52095,480,640
Size327.5 MB 91.1 MB
Events in quadrant A3,462,189639,412
Events in quadrant B2,804,570660,138
Events in quadrant C2,706,421612,351
Events in quadrant D3,274,939564,104

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137512
B0124132
C0119522
D0139012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5941781.312910%
B5941310.521798%
C594130.050497%
D5940911.531987%

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 7253 5942 53 53 0.73% 0.89%
B 7253 5942 17 17 0.23% 0.29%
C 7253 5942 0 0 0.00% 0.00%
D 7252 5941 88 88 1.21% 1.48%

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 657221 5015.22 638 624 130.9
A 15 237 293851 2239.73 638 624 130.9
A 15 223 20460 151.51 638 624 130.9
B 0 189 93019 760.71 635 619 121.5
B 0 190 52731 429.03 635 619 121.5
B 0 186 49615 403.37 635 619 121.5
C 15 214 250198 1716.47 617 617 145.4
C 3 233 45978 311.97 617 617 145.4
C 13 61 4144 24.26 617 617 145.4
D 1 52 491519 3284.7 615 595 149.5
D 13 249 114293 760.73 615 595 149.5
D 12 6 92875 617.43 615 595 149.5

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