Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/19/2018   07:22:07   (  -0.01,-134.71) (   0.30,-133.28)  162.69                80
 01/19/2018   19:46:02   (   0.01,-134.70) (   0.83,-138.43)  423.67                80
 01/21/2018   19:33:51   (   0.02,-134.79) (   0.17,-135.48)   77.84                80
 01/23/2018   19:19:00   (   0.02,-134.87) (  -0.50,-132.53)  267.34                80
 01/24/2018   07:43:03   (  -0.02,-134.92) (  -0.60,-137.72)  317.74                80
 01/26/2018   07:28:12   (  -0.01,-134.99) (   0.02,-134.76)   26.31                80
 01/28/2018   07:16:01   (  -0.01,-135.05) (   0.70,-131.81)  369.38                80
 01/28/2018   19:39:55   (   0.01,-135.04) (   0.43,-136.96)  218.32                80
 01/30/2018   19:27:43   (   0.01,-135.09) (  -0.20,-134.00)  124.27                80
 01/31/2018   07:49:07   (  -0.02,-135.14) (  -0.90,-139.19)  460.98                80
 02/01/2018   19:15:31   (   0.03,-135.15) (  -0.83,-131.04)  466.77                80