Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 12 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/06/2021   19:31:29   (  -0.03,-137.19) (  -0.05,-137.08)   11.61                80
 12/08/2021   19:19:14   (  -0.03,-137.17) (  -0.65,-134.12)  346.53                80
 12/09/2021   07:43:17   (   0.02,-137.17) (  -0.42,-139.32)  244.41                80
 12/11/2021   07:28:22   (   0.02,-137.15) (   0.19,-136.36)   90.45                80
 12/11/2021   19:52:17   (  -0.02,-137.15) (   0.89,-141.52)  496.15                80
 12/13/2021   07:16:08   (   0.02,-137.13) (   0.80,-133.39)  425.08                80
 12/13/2021   19:40:02   (  -0.02,-137.13) (   0.27,-138.55)  161.63                80
 12/15/2021   19:27:47   (  -0.02,-137.11) (  -0.35,-135.59)  172.36                80
 12/16/2021   07:49:10   (   0.02,-137.10) (  -0.77,-140.78)  418.85                80
 12/18/2021   07:36:55   (   0.01,-137.07) (  -0.15,-137.82)   85.74                80