Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2020 12 8.  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)
 12/09/2020   06:02:09   (  -0.24,-128.12) (  -0.12,-127.62)   57.39                80
 12/10/2020   18:18:21   (   0.22,-128.13) (   1.13,-132.18)  461.82                80
 12/11/2020   18:00:21   (   0.23,-128.14) (   0.03,-127.18)  109.30                80
 12/13/2020   06:16:43   (  -0.21,-128.18) (  -0.99,-131.79)  410.23                80
 12/14/2020   05:58:43   (  -0.23,-128.20) (   0.11,-126.79)  160.72                80
 12/15/2020   18:14:56   (   0.21,-128.20) (   0.90,-131.36)  359.45                80
 12/16/2020   17:56:56   (   0.23,-128.21) (  -0.21,-126.36)  211.14                80
 12/18/2020   06:13:16   (  -0.21,-128.24) (  -0.82,-130.95)  309.35                80
 12/19/2020   05:55:17   (  -0.23,-128.25) (   0.28,-125.95)  261.40                80
 12/20/2020   18:11:29   (   0.21,-128.25) (   0.71,-130.52)  258.75                80
 12/21/2020   17:53:30   (   0.23,-128.26) (  -0.39,-125.52)  311.76                80