Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 6 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2015   11:14:25   (  -0.08,-134.25) (   0.28,-135.91)  189.13                80
 06/20/2015   11:05:51   (  -0.08,-134.19) (  -0.31,-133.18)  115.60                80
 06/21/2015   10:54:38   (  -0.08,-134.14) (  -0.91,-130.45)  420.31                80
 06/23/2015   23:14:16   (   0.10,-133.98) (  -0.34,-135.79)  206.63                80
 06/24/2015   23:05:43   (   0.09,-133.92) (   0.31,-133.07)   97.58                80
 06/25/2015   22:54:30   (   0.09,-133.86) (   0.89,-130.34)  401.65                80
 06/28/2015   11:13:54   (  -0.12,-133.71) (   0.31,-135.63)  218.05                80
 06/29/2015   11:05:20   (  -0.12,-133.64) (  -0.30,-132.90)   85.44                80
 06/30/2015   10:54:07   (  -0.11,-133.58) (  -0.90,-130.17)  388.75                80