ASTROSAT CZTI

Data Quality Report

Orbit 06237

Creation date: 2024-06-27T15:04:34.138416
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/AS1A02_151T01_9000000818_06237cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06237cztM0_level2_quad_clean.evt
Size (bytes)485,038,08084,625,920
Size462.6 MB 80.7 MB
Events in quadrant A3,327,957535,556
Events in quadrant B4,005,242534,395
Events in quadrant C3,053,845535,782
Events in quadrant D3,870,535512,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139383
B0160402
C0133872
D0159662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63651251.963865%
B63652834.446190%
C6365981.539670%
D63651221.916732%

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 7590 6365 0 0 0.00% 0.00%
B 7590 6365 130 130 1.71% 2.04%
C 7590 6365 0 0 0.00% 0.00%
D 7590 6365 3 3 0.04% 0.05%

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 15 236 149858 923.57 808 791 161.4
A 8 15 54766 334.41 808 791 161.4
A 0 226 7832 43.62 808 791 161.4
B 3 64 644052 4247.08 805 786 151.5
B 15 204 145876 957.94 805 786 151.5
B 0 219 75423 492.78 805 786 151.5
C 13 61 6160 30.1 781 785 178.5
C 1 16 3519 15.31 781 785 178.5
C 3 202 2008 6.85 781 785 178.5
D 2 63 612178 3227.09 785 762 189.5
D 11 241 158125 830.57 785 762 189.5
D 5 97 49911 259.41 785 762 189.5

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