Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2019 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2019   19:33:31   (   0.01,-137.18) (  -0.30,-135.59)  180.88                80
 12/11/2019   07:52:15   (  -0.01,-137.18) (  -0.80,-140.78)  410.26                80
 12/13/2019   07:40:04   (  -0.02,-137.16) (  -0.15,-137.83)   76.15                80
 12/15/2019   07:30:32   (  -0.03,-137.13) (   0.46,-134.86)  257.25                80
 12/15/2019   19:49:08   (   0.03,-137.12) (   0.62,-140.03)  329.79                80
 12/17/2019   19:39:36   (   0.04,-137.08) (   0.01,-137.06)    3.69                80
 12/19/2019   19:27:24   (   0.04,-137.04) (  -0.59,-134.10)  335.11                80
 12/20/2019   07:46:08   (  -0.04,-137.03) (  -0.51,-139.29)  256.56                80
 12/22/2019   07:36:36   (  -0.04,-136.99) (   0.10,-136.33)   74.91                80