Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/16/2018   19:12:54   (  -0.01,-134.57) (  -0.73,-131.03)  401.13                80
 01/17/2018   07:36:57   (  -0.00,-134.59) (  -0.37,-136.22)  186.08                80
 01/19/2018   07:22:05   (  -0.00,-134.49) (   0.23,-133.26)  139.43                80
 01/19/2018   19:46:01   (   0.01,-134.41) (   0.84,-138.42)  455.35                80
 01/21/2018   07:09:53   (  -0.01,-134.39) (   0.85,-130.30)  464.47                80
 01/21/2018   19:33:48   (   0.02,-134.31) (   0.29,-135.45)  130.47                80
 01/23/2018   19:18:56   (   0.01,-134.20) (  -0.34,-132.49)  193.88                80
 01/24/2018   07:40:20   (  -0.02,-134.22) (  -0.75,-137.68)  393.82                80
 01/26/2018   07:28:08   (  -0.01,-134.10) (  -0.12,-134.72)   70.63                80
 01/28/2018   07:18:35   (  -0.01,-133.97) (   0.47,-131.75)  251.86                80
 01/28/2018   19:39:50   (   0.01,-133.88) (   0.66,-136.90)  343.74                80