ASTROSAT CZTI

Data Quality Report

Orbit 47959

Creation date: 2024-08-10T16:27:06.485744
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_062T02_9000006384_47959cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47959cztM0_level2_quad_clean.evt
Size (bytes)485,821,440121,769,280
Size463.3 MB 116.1 MB
Events in quadrant A7,278,762802,374
Events in quadrant B3,370,795829,234
Events in quadrant C3,321,724797,126
Events in quadrant D3,419,271726,675

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272020
B0154770
C0155920
D0159320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7640520.680628%
B764090.117801%
C7640180.235602%
D7640210.274869%

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 7640 7640 0 0 0.00% 0.00%
B 7640 7640 0 0 0.00% 0.00%
C 7640 7640 16 16 0.21% 0.21%
D 7640 7640 18 18 0.24% 0.24%

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 4043244 23106.66 835 817 174.9
A 3 137 10042 52.73 835 817 174.9
A 13 254 9595 50.17 835 817 174.9
B 0 198 31907 188.98 833 806 164.6
B 15 19 31866 188.73 833 806 164.6
B 12 111 21402 125.15 833 806 164.6
C 14 254 69773 354.94 825 831 194.2
C 12 250 17868 87.71 825 831 194.2
C 14 67 12156 58.31 825 831 194.2
D 11 224 121907 592.6 824 797 204.4
D 2 234 41040 196.91 824 797 204.4
D 14 34 36094 172.71 824 797 204.4

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