Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 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)
 12/18/2021   07:36:57   (   0.02,-137.20) (  -0.11,-137.83)   71.84                80
 12/20/2021   07:22:03   (   0.02,-137.19) (   0.52,-134.88)  263.37                80
 12/20/2021   19:43:18   (  -0.02,-137.20) (   0.57,-140.04)  322.63                80
 12/22/2021   19:33:44   (  -0.02,-137.18) (  -0.06,-137.08)   12.04                80
 12/24/2021   19:21:30   (  -0.02,-137.16) (  -0.69,-134.12)  346.13                80
 12/25/2021   07:42:53   (   0.02,-137.15) (  -0.45,-139.31)  245.50                80
 12/27/2021   07:27:59   (   0.02,-137.13) (   0.19,-136.35)   88.07                80
 12/27/2021   19:49:14   (  -0.01,-137.12) (   0.89,-141.51)  498.67                80
 12/29/2021   07:15:44   (   0.02,-137.09) (   0.77,-133.39)  420.86                80
 12/29/2021   19:36:59   (  -0.01,-137.09) (   0.31,-138.55)  166.12                80
 12/31/2021   19:27:25   (  -0.01,-137.05) (  -0.33,-135.59)  165.57                80