Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2020 12 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/27/2020   18:50:13   (   0.14,-128.26) (  -0.59,-124.82)  391.09                80
 12/28/2020   07:08:58   (  -0.11,-128.26) (  -0.46,-130.03)  200.58                80
 12/30/2020   06:59:26   (  -0.11,-128.25) (   0.16,-127.07)  134.50                80
 12/30/2020   19:18:01   (   0.09,-128.25) (   0.90,-132.23)  452.32                80
 01/01/2021   06:47:14   (  -0.13,-128.23) (   0.78,-124.11)  469.10                80
 01/01/2021   19:05:49   (   0.10,-128.23) (   0.34,-129.26)  117.94                80
 01/03/2021   18:56:17   (   0.11,-128.21) (  -0.28,-126.31)  216.12                80
 01/04/2021   07:15:01   (  -0.07,-128.20) (  -0.77,-131.51)  376.54                80
 01/06/2021   07:02:49   (  -0.08,-128.17) (  -0.14,-128.56)   43.00                80
 01/08/2021   06:53:16   (  -0.08,-128.14) (   0.43,-125.59)  290.03                80
 01/08/2021   19:11:52   (   0.05,-128.14) (   0.63,-130.75)  297.01                80