Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2019 9 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)
 09/21/2019   19:33:36   (   0.03,-137.21) (  -0.30,-135.59)  183.66                80
 09/22/2019   07:55:00   (  -0.03,-137.20) (  -0.82,-140.78)  407.56                80
 09/24/2019   07:42:49   (  -0.03,-137.19) (  -0.17,-137.83)   73.03                80
 09/26/2019   07:27:58   (  -0.03,-137.17) (   0.48,-134.88)  260.84                80
 09/26/2019   19:49:13   (   0.03,-137.17) (   0.65,-140.03)  325.69                80
 09/28/2019   19:39:42   (   0.02,-137.15) (   0.00,-137.08)    7.74                80
 09/30/2019   19:27:30   (   0.03,-137.12) (  -0.59,-134.12)  340.85                80
 10/01/2019   07:48:54   (  -0.03,-137.11) (  -0.52,-139.31)  250.79                80
 10/03/2019   07:36:43   (  -0.03,-137.08) (   0.14,-136.36)   81.65                80