Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 3 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/13/2018   07:40:30   (   0.01,-135.11) (  -0.55,-137.73)  297.67                80
 03/15/2018   07:30:59   (   0.01,-135.05) (   0.07,-134.77)   31.60                80
 03/17/2018   07:18:48   (   0.01,-134.98) (   0.70,-131.82)  360.45                80
 03/17/2018   19:37:24   (  -0.01,-134.98) (   0.39,-136.98)  226.76                80
 03/19/2018   19:27:52   (  -0.01,-134.90) (  -0.18,-134.01)  101.34                80
 03/20/2018   07:46:35   (   0.02,-134.87) (  -0.93,-139.20)  492.60                80
 03/21/2018   19:15:41   (  -0.01,-134.82) (  -0.81,-131.05)  428.53                80
 03/22/2018   07:34:25   (   0.02,-134.79) (  -0.29,-136.24)  165.63                80
 03/24/2018   07:24:54   (   0.02,-134.69) (   0.34,-133.29)  160.39                80
 03/24/2018   19:43:29   (  -0.03,-134.68) (   0.75,-138.45)  427.70                80
 03/26/2018   07:12:42   (   0.02,-134.60) (   0.92,-130.32)  485.68                80
 03/26/2018   19:31:17   (  -0.03,-134.58) (   0.18,-135.48)  102.50                80