Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 1 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 01/07/2021   06:02:25   (  -0.17,-128.18) (  -0.07,-127.68)   57.03                80
 01/08/2021   18:18:38   (   0.14,-128.17) (   1.02,-132.26)  464.46                80
 01/09/2021   18:00:39   (   0.16,-128.16) (  -0.05,-127.25)  103.23                80
 01/11/2021   06:17:01   (  -0.12,-128.12) (  -0.94,-131.86)  425.99                80
 01/12/2021   05:59:02   (  -0.15,-128.10) (   0.14,-126.86)  141.73                80
 01/13/2021   18:15:14   (   0.12,-128.09) (   0.87,-131.43)  380.28                80
 01/14/2021   17:57:15   (   0.14,-128.07) (  -0.21,-126.43)  187.13                80
 01/16/2021   06:13:37   (  -0.11,-128.03) (  -0.79,-131.03)  342.75                80
 01/17/2021   05:55:37   (  -0.13,-128.01) (   0.29,-126.03)  224.94                80
 01/18/2021   18:11:51   (   0.10,-128.00) (   0.65,-130.61)  296.93                80
 01/19/2021   17:53:51   (   0.12,-127.98) (  -0.42,-125.61)  270.33                80