Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 10 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)
 10/11/2018   07:17:02   (   0.33,-135.60) (   1.06,-132.14)  392.97                80
 10/11/2018   19:38:18   (  -0.34,-135.64) (  -0.01,-137.31)  189.85                80
 10/13/2018   19:28:45   (  -0.33,-135.62) (  -0.62,-134.35)  144.99                80
 10/14/2018   07:50:09   (   0.33,-135.59) (  -0.48,-139.54)  448.92                80
 10/15/2018   19:16:32   (  -0.32,-135.60) (  -1.23,-131.38)  479.24                80
 10/16/2018   07:37:56   (   0.33,-135.56) (   0.13,-136.58)  114.97                80
 10/18/2018   07:23:03   (   0.32,-135.53) (   0.74,-133.61)  218.47                80
 10/18/2018   19:44:17   (  -0.32,-135.55) (   0.37,-138.77)  366.28                80
 10/20/2018   19:32:05   (  -0.32,-135.51) (  -0.24,-135.80)   33.30                80
 10/22/2018   19:22:33   (  -0.32,-135.48) (  -0.90,-132.85)  299.22                80
 10/23/2018   07:43:55   (   0.31,-135.45) (  -0.24,-138.03)  293.76                80