Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2019 4 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2019   19:40:15   (   0.00,-137.21) (  -0.03,-137.12)   10.72                80
 04/23/2019   19:28:04   (   0.01,-137.20) (  -0.64,-134.16)  345.39                80
 04/24/2019   07:49:28   (  -0.01,-137.16) (  -0.48,-139.35)  249.14                80
 04/26/2019   07:34:37   (  -0.01,-137.14) (   0.13,-136.39)   84.72                80
 04/26/2019   19:55:53   (   0.01,-137.17) (   0.95,-141.55)  499.11                80
 04/28/2019   07:22:26   (  -0.02,-137.12) (   0.74,-133.44)  418.07                80
 04/28/2019   19:43:42   (   0.02,-137.14) (   0.35,-138.60)  165.76                80
 04/30/2019   19:34:12   (   0.02,-137.12) (  -0.31,-135.65)  167.18                80
 05/01/2019   07:55:36   (  -0.02,-137.08) (  -0.81,-140.84)  426.75                80
 05/02/2019   19:22:01   (   0.02,-137.09) (  -0.91,-132.69)  499.55                80
 05/03/2019   07:43:25   (  -0.02,-137.05) (  -0.21,-137.88)   94.69                80