ASTROSAT CZTI

Data Quality Report

Orbit 46973

Creation date: 2024-06-27T23:30:09.675593
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_071T07_9000006290_46973cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46973cztM0_level2_quad_clean.evt
Size (bytes)682,799,040135,550,080
Size651.2 MB 129.3 MB
Events in quadrant A8,329,657909,032
Events in quadrant B6,177,809901,671
Events in quadrant C4,436,141888,662
Events in quadrant D5,670,329811,139

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03052334
B02420715
C0196409
D0228686

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85442512.937734%
B85504445.192982%
C8550290.339181%
D85522542.970065%

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 8555 8553 75 75 0.88% 0.88%
B 8555 8553 104 104 1.22% 1.22%
C 8555 8553 17 17 0.20% 0.20%
D 8555 8555 203 203 2.37% 2.37%

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 4316118 22059.04 933 910 195.6
A 14 248 314561 1603.36 933 910 195.6
A 0 243 31838 158.1 933 910 195.6
B 3 112 1996313 11144.45 924 894 179.1
B 5 255 153407 851.79 924 894 179.1
B 5 172 130466 723.66 924 894 179.1
C 15 208 757816 3543.98 911 914 213.6
C 14 254 96582 447.94 911 914 213.6
C 12 250 16453 72.76 911 914 213.6
D 1 52 1331425 5906.78 901 870 225.3
D 13 249 433364 1919.99 901 870 225.3
D 13 171 144066 635.69 901 870 225.3

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