Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/10/2018   07:28:14   (   0.01,-134.90) (   0.04,-134.77)   15.33                80
 01/12/2018   07:16:02   (   0.01,-134.83) (   0.63,-131.81)  343.14                80
 01/12/2018   19:39:58   (  -0.00,-134.76) (   0.44,-136.97)  250.89                80
 01/14/2018   19:25:06   (  -0.01,-134.67) (  -0.15,-134.00)   76.24                80
 01/16/2018   19:15:34   (  -0.01,-134.58) (  -0.75,-131.04)  402.85                80
 01/17/2018   07:36:57   (   0.00,-134.61) (  -0.36,-136.23)  184.20                80
 01/19/2018   07:22:06   (   0.00,-134.52) (   0.24,-133.26)  141.92                80
 01/19/2018   19:46:01   (   0.00,-134.44) (   0.82,-138.43)  452.76                80
 01/21/2018   07:09:54   (  -0.00,-134.42) (   0.85,-130.30)  467.58                80
 01/21/2018   19:33:48   (   0.01,-134.34) (   0.27,-135.45)  127.25                80