ASTROSAT CZTI

Data Quality Report

Orbit 03612

Creation date: 2024-06-27T14:31:35.955148
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/AS1G05_234T02_9000000474_03612cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03612cztM0_level2_quad_clean.evt
Size (bytes)1,461,801,600197,694,720
Size1.4 GB 188.5 MB
Events in quadrant A8,559,5941,184,428
Events in quadrant B10,503,3621,186,094
Events in quadrant C15,108,2201,147,761
Events in quadrant D8,807,5781,150,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0392787
B0442584
C05869811
D0404534

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A191441070.558922%
B191452511.311047%
C1914413797.203301%
D191451170.611126%

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 21100 19149 6 6 0.03% 0.03%
B 21100 19149 79 79 0.37% 0.41%
C 21100 19149 998 998 4.73% 5.21%
D 21100 19149 44 44 0.21% 0.23%

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 14 238 133208 295.7 2152 2096 443.4
A 8 15 41426 88.7 2152 2096 443.4
A 15 174 24548 50.64 2152 2096 443.4
B 15 204 1175207 2797.58 2181 2123 419.3
B 5 172 464353 1102.33 2181 2123 419.3
B 14 167 267006 631.7 2181 2123 419.3
C 2 53 6865896 14287.18 2064 2072 480.4
C 9 247 105242 214.75 2064 2072 480.4
C 8 128 23587 44.78 2064 2072 480.4
D 8 195 408495 804.78 2097 2035 505.1
D 13 239 136917 267.06 2097 2035 505.1
D 1 193 120803 235.16 2097 2035 505.1

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
Veto Counter