Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2020 12 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/25/2020   19:02:25   (   0.13,-128.27) (   0.03,-127.78)   55.13                80
 12/27/2020   18:50:13   (   0.14,-128.26) (  -0.58,-124.82)  391.02                80
 12/28/2020   07:08:57   (  -0.11,-128.26) (  -0.47,-130.03)  200.48                80
 12/30/2020   06:59:25   (  -0.11,-128.25) (   0.14,-127.07)  134.56                80
 12/30/2020   19:18:01   (   0.09,-128.25) (   0.92,-132.23)  452.37                80
 01/01/2021   06:47:14   (  -0.13,-128.23) (   0.76,-124.11)  469.18                80
 01/01/2021   19:05:49   (   0.10,-128.23) (   0.30,-129.27)  117.97                80
 01/03/2021   18:56:17   (   0.11,-128.21) (  -0.33,-126.32)  216.08                80
 01/04/2021   07:15:01   (  -0.07,-128.20) (  -0.78,-131.51)  376.44                80
 01/06/2021   07:02:49   (  -0.08,-128.17) (  -0.15,-128.55)   42.82                80