Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2019 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2019   19:27:26   (   0.03,-137.22) (  -0.66,-134.12)  353.45                80
 12/20/2019   07:46:10   (  -0.03,-137.21) (  -0.45,-139.31)  237.74                80
 12/22/2019   07:36:38   (  -0.03,-137.21) (   0.14,-136.34)   97.66                80
 12/22/2019   19:55:14   (   0.02,-137.21) (   0.94,-141.50)  488.54                80
 12/24/2019   07:24:27   (  -0.03,-137.19) (   0.79,-133.39)  432.36                80
 12/24/2019   19:43:02   (   0.02,-137.19) (   0.34,-138.54)  153.99                80
 12/26/2019   19:33:31   (   0.03,-137.17) (  -0.32,-135.59)  180.21                80
 12/27/2019   07:52:15   (  -0.03,-137.16) (  -0.79,-140.78)  411.33                80
 12/29/2019   07:40:03   (  -0.04,-137.14) (  -0.19,-137.82)   77.57                80
 12/31/2019   07:30:31   (  -0.04,-137.11) (   0.42,-134.85)  255.91                80
 12/31/2019   19:49:06   (   0.04,-137.10) (   0.65,-140.02)  330.90                80