ASTROSAT CZTI

Data Quality Report

Orbit 47392

Creation date: 2024-07-03T10:44:50.331979
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_093T25_9000006324_47392cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47392cztM0_level2_quad_clean.evt
Size (bytes)633,646,080120,885,120
Size604.3 MB 115.3 MB
Events in quadrant A7,840,355812,729
Events in quadrant B4,440,339842,938
Events in quadrant C3,678,541828,971
Events in quadrant D6,883,284625,603

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286901
B0184321
C0167501
D0262391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79034786.048336%
B79034185.289131%
C7903770.974314%
D7904151719.192814%

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 8518 7903 13 13 0.15% 0.16%
B 8518 7903 111 111 1.30% 1.40%
C 8518 7904 2 2 0.02% 0.03%
D 8518 7905 1185 1185 13.91% 14.99%

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 3975813 20014.77 935 912 198.6
A 9 191 240312 1205.45 935 912 198.6
A 3 137 11464 53.13 935 912 198.6
B 5 32 502883 2624.07 935 905 191.3
B 0 190 51638 265.2 935 905 191.3
B 4 171 45184 231.47 935 905 191.3
C 12 250 20755 88.13 932 937 224.9
C 3 233 14450 60.09 932 937 224.9
C 13 61 6125 23.07 932 937 224.9
D 12 2 3363072 16412.73 807 782 204.9
D 2 249 202417 984.26 807 782 204.9
D 2 165 153084 743.45 807 782 204.9

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