ASTROSAT CZTI

Data Quality Report

Orbit 43230

Creation date: 2024-06-27T22:49:34.666618
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/AS1A06_006T01_9000005860_43230cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43230cztM0_level2_quad_clean.evt
Size (bytes)303,514,56080,254,080
Size289.5 MB 76.5 MB
Events in quadrant A3,504,872515,515
Events in quadrant B2,189,771553,662
Events in quadrant C2,492,408532,445
Events in quadrant D2,669,050487,453

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133262
B098712
C0103372
D0112352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48582505.146151%
B4858130.267600%
C485870.144092%
D4858791.626184%

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 6891 4859 227 227 3.29% 4.67%
B 6891 4859 6 6 0.09% 0.12%
C 6891 4859 6 6 0.09% 0.12%
D 6891 4859 77 77 1.12% 1.58%

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 13 248 549683 5017.78 529 517 109.4
A 10 83 537514 4906.59 529 517 109.4
A 15 237 299409 2731.0 529 517 109.4
B 0 186 34077 317.85 534 520 105.6
B 0 189 23897 221.43 534 520 105.6
B 15 35 18993 174.98 534 520 105.6
C 15 214 213786 1726.31 527 530 123.5
C 14 254 208177 1680.91 527 530 123.5
C 3 233 5702 41.87 527 530 123.5
D 1 52 285533 2192.63 524 509 130.0
D 12 16 253611 1947.06 524 509 130.0
D 12 0 33356 252.68 524 509 130.0

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