Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 1 5.  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   06:02:26   (  -0.17,-128.18) (  -0.04,-127.69)   56.94                80
 01/08/2021   18:18:38   (   0.14,-128.17) (   1.05,-132.25)  464.62                80
 01/09/2021   18:00:38   (   0.16,-128.16) (  -0.02,-127.25)  103.03                80
 01/11/2021   06:17:01   (  -0.12,-128.12) (  -0.97,-131.86)  426.33                80
 01/12/2021   05:59:01   (  -0.15,-128.10) (   0.11,-126.86)  141.33                80
 01/13/2021   18:15:15   (   0.12,-128.09) (   0.84,-131.43)  380.81                80
 01/14/2021   17:57:15   (   0.14,-128.07) (  -0.23,-126.43)  186.55                80
 01/16/2021   06:13:37   (  -0.11,-128.02) (  -0.76,-131.04)  343.42                80
 01/17/2021   05:55:38   (  -0.13,-128.00) (   0.32,-126.04)  224.20                80
 01/18/2021   18:11:50   (   0.10,-127.99) (   0.69,-130.60)  297.77                80