ASTROSAT CZTI

Data Quality Report

Orbit 44598

Creation date: 2024-06-27T23:04:20.989209
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_009T03_9000006006_44598cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44598cztM0_level2_quad_clean.evt
Size (bytes)659,381,760109,641,600
Size628.8 MB 104.6 MB
Events in quadrant A5,439,599780,572
Events in quadrant B8,686,555584,245
Events in quadrant C3,901,682764,899
Events in quadrant D5,813,958681,492

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223411
B0307033
C0168377
D0222055

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73032483.395865%
B7303222430.453238%
C73021502.054232%
D73035197.106668%

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 7603 7303 18 18 0.24% 0.25%
B 7604 7304 1917 1917 25.21% 26.25%
C 7604 7303 59 59 0.78% 0.81%
D 7602 7302 446 446 5.87% 6.11%

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 1922049 10678.54 858 840 179.9
A 15 223 124238 685.88 858 840 179.9
A 13 248 42442 231.23 858 840 179.9
B 14 167 5670784 38897.09 718 696 145.8
B 5 172 108533 739.77 718 696 145.8
B 0 186 44785 302.45 718 696 145.8
C 12 2 376104 1904.04 829 836 197.1
C 12 250 150029 756.98 829 836 197.1
C 14 254 94934 477.44 829 836 197.1
D 13 249 1211635 5835.36 818 792 207.5
D 1 52 493219 2373.13 818 792 207.5
D 4 232 283136 1360.69 818 792 207.5

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