Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/19/2018   07:22:06   (  -0.01,-134.49) (   0.23,-133.26)  139.39                80
 01/19/2018   19:46:01   (   0.01,-134.41) (   0.84,-138.42)  455.38                80
 01/21/2018   07:09:55   (  -0.01,-134.39) (   0.89,-130.31)  464.31                80
 01/21/2018   19:33:50   (   0.02,-134.31) (   0.25,-135.46)  130.62                80
 01/23/2018   19:18:58   (   0.02,-134.20) (  -0.35,-132.50)  193.49                80
 01/24/2018   07:40:21   (  -0.02,-134.22) (  -0.76,-137.69)  394.32                80
 01/26/2018   07:28:09   (  -0.01,-134.10) (  -0.16,-134.72)   71.33                80
 01/28/2018   07:18:38   (  -0.01,-133.97) (   0.45,-131.76)  250.76                80
 01/28/2018   19:39:53   (   0.01,-133.88) (   0.63,-136.92)  344.89                80
 01/30/2018   19:25:01   (   0.01,-133.75) (   0.03,-133.96)   23.66                80