ASTROSAT CZTI

Data Quality Report

Orbit 47533

Creation date: 2024-07-12T22:23:41.548828
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/AS1C09_002T01_9000006334_47533cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47533cztM0_level2_quad_clean.evt
Size (bytes)438,517,44099,351,360
Size418.2 MB 94.7 MB
Events in quadrant A6,204,925663,289
Events in quadrant B3,264,347671,411
Events in quadrant C2,536,175666,921
Events in quadrant D3,785,847609,304

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224741
B0133781
C0116362
D0150041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56833045.349287%
B56832875.050150%
C5682340.598381%
D56831322.322717%

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 6938 5684 81 81 1.17% 1.43%
B 6938 5684 152 152 2.19% 2.67%
C 6937 5683 1 1 0.01% 0.02%
D 6938 5684 95 95 1.37% 1.67%

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 3341367 25074.6 652 640 133.2
A 9 191 249127 1865.08 652 640 133.2
A 13 248 63081 468.67 652 640 133.2
B 5 255 524262 4215.93 648 630 124.2
B 0 198 60602 482.85 648 630 124.2
B 0 200 42342 335.84 648 630 124.2
C 12 2 15743 100.49 642 645 150.2
C 12 250 9752 60.62 642 645 150.2
C 14 254 6811 41.04 642 645 150.2
D 2 165 554626 3476.41 639 619 159.4
D 2 249 266487 1668.33 639 619 159.4
D 7 55 208930 1307.16 639 619 159.4

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