Regard coordinates 31.96212, -103.004715
UTM converters give it's UTM coordinates are 13/R/FR
.
Example converter is here: http://www.rcn.montana.edu/resources/converter.aspx
But there are many of them and they give similar answers for these coordinates.
Simultaneously, in Sentinel-2 dataset here http://sentinel-s2-l1c.s3-website.eu-central-1.amazonaws.com/#tiles/13/R/
I can't find FR
subdirectory.
In google this location is here:
And finding the same place in Sentinel image browser I see, that tile is different
which stands for 13/S/FR
i.e. the same UTM
and square, but different band.
How is this possible?
UPDATE
KML with Sentinel-2 tiles also reports S
tile in given location
UPDATE 2
According to this picture
taken from here, the FR
square is located half in S
UTM zone and half in R
zone. Obviously, most automatic converters assign this square to R
zone, while Sentinel-2 accounts it for S
zone.
Is there any truth here?
UPDATE 3
The simple Python code, taken from here https://gis.stackexchange.com/a/224994/32207
bandVals = "CDEFGHJKLMNPQRSTUVWXX"
lon = 31.96212
lat = -103.004715
zone = int(lat + 186.0) / 6
if (lon >= 84.0):
band = 'Y' if (lat < 0.0) else 'Z'
elif (lon <= -80.0):
band = 'A' if (lat < 0.0) else 'B'
else:
band = bandVals[int(lon + 80.0) / 8]
print '{:02d}{:s}'.format(zone,band)
also returns 13R
.
Is this error in Sentinel-2 data or what?
S/FR
, while UTM converters giveR/FR
. How to calculate location if UTM converters work incorrectly? – Dims May 24 '17 at 20:33