Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/14/2018   19:25:05   (  -0.01,-134.66) (  -0.13,-134.00)   75.50                80
 01/16/2018   19:12:55   (  -0.01,-134.57) (  -0.77,-131.04)  401.44                80
 01/17/2018   07:36:58   (  -0.00,-134.60) (  -0.35,-136.23)  185.86                80
 01/19/2018   07:22:07   (  -0.00,-134.50) (   0.29,-133.28)  139.55                80
 01/19/2018   19:46:02   (   0.01,-134.42) (   0.85,-138.42)  455.15                80
 01/21/2018   07:09:55   (  -0.01,-134.39) (   0.86,-130.31)  464.42                80
 01/21/2018   19:33:50   (   0.01,-134.31) (   0.28,-135.46)  130.43                80
 01/23/2018   19:18:59   (   0.01,-134.20) (  -0.35,-132.50)  193.63                80
 01/24/2018   07:40:23   (  -0.02,-134.22) (  -0.77,-137.69)  394.27                80
 01/26/2018   07:28:12   (  -0.01,-134.11) (  -0.15,-134.73)   71.38                80