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LAT / LON graph on geotype in R

I have a map of sea ice as a geotyphus. The ultimate goal is to extract sea ice concentrations at specific lat / lon coordinates.

The geotype can be found at: http://www.iup.uni-bremen.de:8084/amsr2data/asi_daygrid_swath/n6250/2015/jan/asi-AMSR2-n6250-20150101-v5.tif

What I'm trying to do is load geotiff using raster () and then overlay it at my locations and then use the extract () function to get the values ​​from the raster file in a specific location.

However, my lat / lon points accumulate in the center of the map. Where am I mistaken? Any help or input is appreciated!

library(raster)
library(sp)

r1 = raster("test.tif")

##check plot
plot(r1)

## check projection
projection(r1)

mydf <- structure(list(longitude = rep(22,7), latitude = seq(60,90,5)),.Names = c("longitude","latitude"), class = "data.frame", row.names = c(NA, -7L)) 

### Get long and lat from data.frame.
xy <- mydf[,c(1,2)]
spdf <- SpatialPointsDataFrame(coords = xy, data = mydf,
                           proj4string = CRS("+proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0"))

 points(spdf, col="red", lwd=2)

 ##extract RGB values as reference for sea-ice concentration
 seaice_conc = extract(r1, spdf)
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Geo-sp , ( ). () ( ), . , . .

, - :

library(raster)

r <- raster("asi-AMSR2-n6250-20150101-v5.tif")
crs(r)
# CRS arguments:
# +proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0 

df <- data.frame(longitude = rep(22,7), latitude = seq(60,90,5), ID=1:7)

spdf <- SpatialPointsDataFrame(coords = df[,1:2], data = df,
         proj4string = CRS("+proj=longlat +datum=WGS84"))


library(rgdal)
p <- spTransform(spdf, crs(r))       

extract(r, p)

, :

spdf <- SpatialPointsDataFrame(coords = xy, data = mydf, proj4string =
          CRS("+proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m"))

SpatialPointsDataFrame (crs). crs, , "+proj=longlat +datum=WGS84". crs, ( spTransform).

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projectRaster . .

newproj <- CRS("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs +towgs84=0,0,0")
p <- projectRaster(r1, newproj)
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