ASTROSAT CZTI

Data Quality Report

Orbit 09080

Creation date: 2024-06-27T15:41:20.124240
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/AS1G07_057T04_9000001264_09080cztM0_level2.evt modeM0/AS1G07_057T04_9000001264_09080cztM0_level2_quad_clean.evt
Size (bytes)570,533,76092,088,000
Size544.1 MB 87.8 MB
Events in quadrant A6,235,594565,995
Events in quadrant B3,709,741591,176
Events in quadrant C3,289,777578,864
Events in quadrant D3,567,512564,109

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01442
B01442
C01444
D01442

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023758539
B015800224
C014972195
D015635236

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A698774210.619722%
B70272002.846165%
C70341051.492750%
D70211922.734653%

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 7193 7112 373 373 5.19% 5.24%
B 7194 7122 5 5 0.07% 0.07%
C 7194 7125 12 12 0.17% 0.17%
D 7194 7126 50 50 0.70% 0.70%

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 8 5 2984883 17461.27 827 808 170.9
A 1 162 28899 164.37 827 808 170.9
A 5 16 11708 63.78 827 808 170.9
B 4 48 197509 1192.02 849 827 165.0
B 0 214 91858 551.71 849 827 165.0
B 0 230 26295 154.35 849 827 165.0
C 14 234 87962 456.73 820 822 190.8
C 13 61 6297 28.7 820 822 190.8
C 8 222 3474 13.9 820 822 190.8
D 1 52 159336 768.26 825 796 206.4
D 2 14 101195 486.52 825 796 206.4
D 13 104 48198 229.7 825 796 206.4

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