Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 12 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)
 12/11/2017   07:16:03   (   0.11,-135.43) (   0.85,-131.86)  406.14                80
 12/11/2017   19:39:57   (  -0.09,-135.38) (   0.28,-137.01)  185.45                80
 12/13/2017   19:27:45   (  -0.10,-135.39) (  -0.38,-134.05)  152.34                80
 12/14/2017   07:49:09   (   0.08,-135.45) (  -0.71,-139.24)  430.78                80
 12/15/2017   19:15:33   (  -0.10,-135.40) (  -1.03,-131.09)  489.56                80
 12/16/2017   07:36:56   (   0.08,-135.45) (  -0.12,-136.27)   93.88                80
 12/18/2017   07:22:04   (   0.09,-135.45) (   0.54,-133.32)  242.48                80
 12/18/2017   19:45:59   (  -0.07,-135.39) (   0.58,-138.47)  350.46                80
 12/20/2017   19:33:46   (  -0.07,-135.37) (  -0.02,-135.50)   14.94                80
 12/22/2017   19:21:34   (  -0.07,-135.36) (  -0.68,-132.54)  320.59                80
 12/23/2017   07:42:57   (   0.06,-135.42) (  -0.46,-137.72)  262.53                80