Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/29/2017   07:22:31   (   0.29,-135.41) (   0.67,-133.49)  217.43                80
 09/29/2017   19:43:47   (  -0.30,-135.43) (   0.39,-138.65)  366.65                80
 10/01/2017   19:31:35   (  -0.29,-135.43) (  -0.24,-135.70)   30.13                80
 10/03/2017   19:22:03   (  -0.29,-135.43) (  -0.88,-132.74)  305.77                80
 10/04/2017   07:43:26   (   0.30,-135.41) (  -0.27,-137.92)  286.40                80
 10/06/2017   07:28:34   (   0.29,-135.40) (   0.38,-134.97)   48.56                80
 10/08/2017   07:16:22   (   0.29,-135.37) (   1.03,-132.01)  382.81                80
 10/08/2017   19:37:37   (  -0.29,-135.38) (   0.09,-137.16)  203.44                80
 10/10/2017   19:28:04   (  -0.29,-135.35) (  -0.51,-134.20)  129.97                80
 10/11/2017   07:49:28   (   0.29,-135.34) (  -0.58,-139.39)  460.98                80