Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2020 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2020   07:02:52   (  -0.15,-128.25) (  -0.23,-128.52)   31.57                80
 12/23/2020   06:53:21   (  -0.16,-128.26) (   0.43,-125.58)  305.84                80
 12/23/2020   19:11:57   (   0.13,-128.26) (   0.63,-130.74)  281.50                80
 12/25/2020   19:02:25   (   0.13,-128.27) (   0.03,-127.78)   55.18                80
 12/27/2020   18:50:13   (   0.14,-128.27) (  -0.58,-124.82)  391.27                80
 12/28/2020   07:08:58   (  -0.11,-128.27) (  -0.47,-130.03)  199.64                80
 12/30/2020   06:59:26   (  -0.12,-128.26) (   0.15,-127.07)  135.61                80
 12/30/2020   19:18:01   (   0.09,-128.26) (   0.92,-132.23)  451.78                80
 01/01/2021   06:47:14   (  -0.13,-128.24) (   0.77,-124.11)  470.43                80
 01/01/2021   19:05:49   (   0.10,-128.24) (   0.30,-129.27)  117.19                80
 01/03/2021   18:56:17   (   0.11,-128.22) (  -0.32,-126.32)  217.04                80