Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 10.  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) (   0.05,-134.77)   15.45                80
 01/12/2018   07:16:02   (   0.01,-134.83) (   0.65,-131.81)  343.02                80
 01/12/2018   19:39:57   (  -0.00,-134.75) (   0.48,-136.96)  250.96                80
 01/14/2018   19:27:45   (  -0.01,-134.67) (  -0.12,-133.99)   76.16                80
 01/16/2018   19:12:54   (  -0.01,-134.58) (  -0.79,-131.04)  402.65                80
 01/17/2018   07:36:58   (   0.00,-134.61) (  -0.32,-136.23)  184.48                80
 01/19/2018   07:22:05   (   0.00,-134.51) (   0.24,-133.26)  141.63                80
 01/19/2018   19:46:00   (   0.01,-134.43) (   0.82,-138.42)  452.97                80
 01/21/2018   07:09:53   (  -0.00,-134.41) (   0.86,-130.30)  467.27                80
 01/21/2018   19:33:48   (   0.01,-134.33) (   0.26,-135.45)  127.42                80
 01/23/2018   19:18:56   (   0.01,-134.22) (  -0.38,-132.49)  197.53                80