Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 3 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/20/2015   19:21:53   (   0.04,-135.02) (  -0.47,-132.64)  270.15                80
 03/21/2015   07:43:17   (  -0.04,-134.98) (  -0.67,-137.83)  325.00                80
 03/23/2015   07:28:27   (  -0.04,-134.90) (  -0.03,-134.88)    3.10                80
 03/25/2015   07:16:16   (  -0.03,-134.83) (   0.58,-131.92)  330.78                80
 03/25/2015   19:37:32   (   0.03,-134.83) (   0.49,-137.08)  255.41                80
 03/27/2015   19:28:00   (   0.03,-134.75) (  -0.09,-134.11)   72.05                80
 03/29/2015   19:15:48   (   0.02,-134.66) (  -0.69,-131.15)  399.38                80
 03/30/2015   07:37:12   (  -0.02,-134.62) (  -0.42,-136.33)  195.32                80
 04/01/2015   07:22:20   (  -0.02,-134.53) (   0.22,-133.38)  131.82                80
 04/01/2015   19:43:34   (   0.02,-134.52) (   0.89,-138.53)  455.38                80