Data source: S3A_OL_2_WFR____20170808T015825_20170808T020125_20170808T035817_0179_021_003_2340_MAR_O_NR_002.SEN3
When I am trying to extract the longitude/latitude from OLCI data using Python, I am a bit confused.
(1) I read longitude/latitude from “geo_coordinates.nc” which are stored as INT32. For example, [116331531, 42158803] @ pixel[0,0] which is translated to [116.331531, 42.158803]
(2)It reads as [116.33295, 42.15732] when I put the pointer on pixel[0,0].
(3)When I extracted pixel info using “copy pixel-info to clipboard”, it gave me two sets of longitude/latitude info.
“Image-X: 0 pixel
Image-Y: 0 pixel
Longitude: 116°19’59” E degree
Latitude: 42°09’27" N degree"
and
“altitude: 0 m
latitude: 42.1588030000 degrees_north
longitude: 116.3315310000 degrees_east” this one is equal to (1)
which one should I use?