ASTROSAT CZTI

Data Quality Report

Orbit 46389

Creation date: 2024-06-27T23:22:33.898899
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_070T06_9000006202_46389cztM0_level2.fits modeM0/AS1A13_070T06_9000006202_46389cztM0_level2_quad_clean.evt
Size (bytes)480,833,280116,383,680
Size458.6 MB 111.0 MB
Events in quadrant A6,485,891760,833
Events in quadrant B3,558,249806,468
Events in quadrant C3,568,812771,706
Events in quadrant D3,650,094704,950

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235422
B0151462
C0153282
D0156062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69003605.217391%
B69002073.000000%
C69001492.159420%
D69001622.347826%

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 7885 6901 7 7 0.09% 0.10%
B 7885 6902 29 29 0.37% 0.42%
C 7885 6901 32 32 0.41% 0.46%
D 7885 6902 31 31 0.39% 0.45%

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 3192927 19094.2 805 787 167.2
A 0 247 114379 679.46 805 787 167.2
A 13 248 54499 321.28 805 787 167.2
B 5 32 232584 1459.09 808 783 158.9
B 0 189 59546 369.89 808 783 158.9
B 0 190 40236 248.34 808 783 158.9
C 1 3 181790 973.14 798 801 186.0
C 12 249 115369 616.01 798 801 186.0
C 14 254 87724 467.37 798 801 186.0
D 1 52 400550 2018.39 800 775 198.1
D 13 249 90355 452.27 800 775 198.1
D 13 138 40947 202.82 800 775 198.1

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