Getting coordinates for the label locations from ggrepel

Below is an example of "label location optimization" using ggplot2 and ggrepel:

x = c(0.8846, 1.1554, 0.9317, 0.9703, 0.9053, 0.9454, 1.0146, 0.9012, 
  0.9055, 1.3307)
y = c(0.9828, 1.0329, 0.931, 1.3794, 0.9273, 0.9605, 1.0259, 0.9542, 
  0.9717, 0.9357)
ShortSci = c("MotAlb", "PruMod", "EriRub", "LusMeg", "PhoOch", "PhoPho", 
         "SaxRub", "TurMer", "TurPil", "TurPhi")

df <- data.frame(x = x, y = y, z = ShortSci)
library(ggplot2)
library(ggrepel)
ggplot(data = df, aes(x = x, y = y)) + theme_bw() + 
  geom_text_repel(aes(label = z), 
                  box.padding = unit(0.45, "lines")) +
  geom_point(colour = "green", size = 3)

Question: is it at all possible to somehow grab the coordinates for the label locations as vectors?

Thank you very much!