ASTROSAT CZTI

Data Quality Report

Orbit 48133

Creation date: 2024-08-23T14:37:57.267842
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/AS1T05_221T01_9000006404_48133cztM0_level2.fits modeM0/AS1T05_221T01_9000006404_48133cztM0_level2_quad_clean.evt
Size (bytes)443,387,520100,984,320
Size422.8 MB 96.3 MB
Events in quadrant A7,540,767853,016
Events in quadrant B1,351,35651,841
Events in quadrant C3,442,769831,818
Events in quadrant D3,446,978761,162

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277320
B084230
C0163700
D0165670

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7995780.975610%
B79967996100.000000%
C799670.087544%
D7996190.237619%

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 7995 7995 0 0 0.00% 0.00%
B 7995 7969 0 0 0.00% 0.00%
C 7996 7996 8 8 0.10% 0.10%
D 7996 7996 19 19 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 4136810 22559.17 876 854 183.3
A 13 254 14776 75.94 876 854 183.3
A 0 31 14727 75.67 876 854 183.3
B 2 177 1106813 84566.13 55 53 13.1
B 0 200 11352 863.34 55 53 13.1
B 4 21 11141 847.22 55 53 13.1
C 12 250 38181 183.67 864 869 203.2
C 12 2 17670 82.7 864 869 203.2
C 12 249 9670 43.32 864 869 203.2
D 2 37 52854 242.4 856 828 214.6
D 2 234 41691 190.39 856 828 214.6
D 12 233 36335 165.43 856 828 214.6

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