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ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.1






	 
	 
	
    Date/Time        Satellite                  ARCHER          Geo-ref       50% Cert    95% Cert  Eye diam   %Cert 
        (UTC)      Source  Sensor    Vmax     Lat     Lon     Lat     Lon     Rad(deg)    Rad(deg)    (deg)    of Eye 
	

	
	
	
20231126/1400     SSMISF16  37GHz    26.4     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231126/1400 *   SSMISF16  89GHz    26.4    14.55 -123.56   14.55 -123.56      0.21        0.60       0.50      13.0
	

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20231126/1500     SSMISF17  37GHz    23.4     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231126/1459     SSMISF17  89GHz    23.4    14.49 -123.66   14.49 -123.66      0.25        0.70       0.40      12.0    
	


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20231126/1207 *   SSMISF18  37GHz    30.8    12.92 -123.87   12.92 -123.87      0.25        0.71       1.50       0.0
	

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20231126/1207     SSMISF18  89GHz    30.8    14.62 -123.46   14.62 -123.46      0.30        0.85       0.60       4.0    
	


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20231126/1004        AMSR2  37GHz     0.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231126/1004 *      AMSR2  89GHz     0.0    14.44 -123.39   14.44 -123.39      0.32        0.90       0.80       3.0
	


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20231126/0416          GMI  37GHz     0.0    15.74 -123.16   15.74 -123.16      0.63        1.79       1.05       0.0    
	

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20231126/0416 *        GMI  89GHz     0.0    14.64 -122.59   14.64 -122.59      0.40        1.14       0.25       3.0
	


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20231126/0124     SSMISF16  37GHz    32.6    16.71 -123.55   16.71 -123.55      0.44        1.25       1.25       0.0    
	

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20231126/0124 *   SSMISF16  89GHz    32.6    14.91 -122.05   14.91 -122.05      0.31        0.87       0.35      15.0
	

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20231126/0224     SSMISF17  37GHz    32.0    14.27 -122.49   14.27 -122.49      0.55        1.55       0.65       0.0    
	

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20231126/0224     SSMISF17  89GHz    32.0    14.72 -122.12   14.72 -122.12      0.50        1.43       0.45       2.0    
	

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20231125/2332     SSMISF18  37GHz    33.7    16.84 -124.21   16.84 -124.21      0.44        1.24       2.50       0.0    
	

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20231125/2332     SSMISF18  89GHz    33.7     ***     ***     ***     ***        ***         ***       ***       ***     
	


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20231125/2150        AMSR2  37GHz     0.0    14.83 -122.70   14.83 -122.70      0.51        1.44       0.25       0.0    
	

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20231125/2150 *      AMSR2  89GHz     0.0    14.73 -122.65   14.73 -122.65      0.45        1.27       0.65       4.0
	


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20231125/1413     SSMISF16  37GHz    39.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231125/1413 *   SSMISF16  89GHz    39.0    14.79 -123.08   14.79 -123.08      0.45        1.27       2.05       3.0
	


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20231125/1221     SSMISF18  37GHz    37.5    14.86 -122.96   14.86 -122.96      0.62        1.74       1.00       0.0    
	

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20231125/1221 *   SSMISF18  89GHz    37.5    14.96 -123.17   14.96 -123.17      0.24        0.67       1.60       9.0
	


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20231125/0920        AMSR2  37GHz     0.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231125/0920 *      AMSR2  89GHz     0.0    12.86 -122.55   12.86 -122.55      0.27        0.77       0.65      39.0
	


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20231125/0457          GMI  37GHz     0.0    13.98 -123.34   13.98 -123.34      0.48        1.36       0.60       0.0    
	

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20231125/0457 *        GMI  89GHz     0.0    14.23 -122.98   14.23 -122.98      0.36        1.03       0.35       8.0
	


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20231125/0138     SSMISF16  37GHz    30.0    13.97 -123.21   13.97 -123.21      0.56        1.58       0.55       0.0    
	

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20231125/0138     SSMISF16  89GHz    30.0    13.67 -122.91   13.67 -122.91      0.62        1.75       0.45       0.0    
	

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20231125/0237     SSMISF17  37GHz    30.0    14.00 -123.32   14.00 -123.32      0.57        1.60       0.40       0.0    
	

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20231125/0237     SSMISF17  89GHz    30.0    13.70 -123.06   13.70 -123.06      0.48        1.37       0.60       4.0    
	

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20231124/2344     SSMISF18  37GHz    30.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231124/2344 *   SSMISF18  89GHz    30.0    13.47 -122.49   13.47 -122.49      0.42        1.20       0.10       8.0
	


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20231124/2345     SSMISF18  37GHz    30.0    14.13 -123.44   14.13 -123.44      0.63        1.78       0.80       0.0    
	

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20231124/2345     SSMISF18  89GHz    30.0    14.28 -122.72   14.28 -122.72      0.55        1.56       0.70       1.0    
	

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20231124/2107        AMSR2  37GHz     0.0    13.52 -122.98   13.52 -122.98      0.40        1.13       0.40       0.0    
	

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20231124/2107 *      AMSR2  89GHz     0.0    13.82 -122.98   13.82 -122.98      0.35        0.99       0.70      11.0
	


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20231124/1427     SSMISF16  37GHz    30.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231124/1427     SSMISF16  89GHz    30.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231124/1724          GMI  37GHz     0.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231124/1724          GMI  89GHz     0.0     ***     ***     ***     ***        ***         ***       ***       ***     
	


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20231124/1234     SSMISF18  37GHz    30.0    14.52 -123.18   14.52 -123.18      0.63        1.78       1.00       0.0    
	

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20231124/1234 *   SSMISF18  89GHz    30.0    12.47 -122.30   12.47 -122.30      0.31        0.86       0.15       8.0
	


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20231124/1016 *      AMSR2  37GHz     0.0    13.28 -122.71   13.28 -122.71      0.19        0.54       0.65       0.0
	

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20231124/1016        AMSR2  89GHz     0.0    13.03 -122.40   13.03 -122.40      0.37        1.04       0.95      27.0    
	


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20231124/0251     SSMISF17  37GHz    33.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231124/0251     SSMISF17  89GHz    33.0     ***     ***     ***     ***        ***         ***       ***       ***     
	


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20231124/0150     SSMISF16  37GHz    32.4     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231124/0150     SSMISF16  89GHz    32.4    11.94 -122.58   11.94 -122.58      0.42        1.19       1.50       2.0    
	

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20231123/2357     SSMISF18  37GHz    31.3    10.64 -123.34   10.64 -123.34      0.42        1.19       0.45       0.0    
	

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20231123/2357     SSMISF18  89GHz    31.3    12.14 -122.01   12.14 -122.01      0.44        1.24       1.15       1.0    
	

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20231123/2357 *   SSMISF18  37GHz    31.2    10.64 -123.33   10.64 -123.33      0.40        1.14       0.40       0.0
	

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20231123/2357     SSMISF18  89GHz    31.2    12.14 -122.00   12.14 -122.00      0.47        1.32       1.15       1.0    
	


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20231123/2202        AMSR2  37GHz     0.0     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231123/2202        AMSR2  89GHz     0.0     ***     ***     ***     ***        ***         ***       ***       ***     
	


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20231123/1400     SSMISF17  37GHz    29.8     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231123/1400     SSMISF17  89GHz    29.8     ***     ***     ***     ***        ***         ***       ***       ***     
	

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20231123/1807 *        GMI  37GHz     0.0    11.85 -122.06   11.85 -122.06      0.28        0.78       0.40       0.0
	

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20231123/1807          GMI  89GHz     0.0    12.20 -121.65   12.20 -121.65      0.30        0.84       1.10       5.0

Key:

- Date/Time: UTC time. If this observation is used in the track it is marked with a "*". If it is used for its own 30-minute window, it is put in bold.

- Source/sensor: Satellite source of the analyzed image.

- Vmax: Maximum winds listed in the forecast center analysis/forecast, *not* ARCHER.

- ARCHER lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the observation. If no center fix could be found, then it is "***".

- Geo ref lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the *nearest geo image*.

- 50% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 50% certain. The lower the number, the more certain the position.

- 95% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 95% certain.

- Eye diam (deg): ARCHER-resolved eye diameter (in degrees). Green: robust, yellow: less certain, red: not robust.

- % cert. of eye: Percent certainty that an eye exists in this image, determined by ARCHER. Currently only available for IR and 85-92 GHz imagery.

Links to related versions:
  - Track Plot
  - Summary table
  - Intensity Estimation