Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2020 12 10.  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)
 12/10/2020   18:18:21   (   0.22,-128.13) (   1.12,-132.18)  461.80                80
 12/11/2020   18:00:22   (   0.23,-128.14) (   0.02,-127.18)  109.34                80
 12/13/2020   06:16:42   (  -0.21,-128.19) (  -1.04,-131.78)  410.03                80
 12/14/2020   05:58:42   (  -0.23,-128.20) (   0.06,-126.78)  160.98                80
 12/15/2020   18:14:55   (   0.21,-128.20) (   0.94,-131.34)  359.24                80
 12/16/2020   17:56:55   (   0.23,-128.21) (  -0.16,-126.35)  211.40                80
 12/18/2020   06:13:17   (  -0.21,-128.24) (  -0.81,-130.96)  308.97                80
 12/19/2020   05:55:17   (  -0.23,-128.25) (   0.30,-125.96)  261.84                80
 12/20/2020   18:11:29   (   0.21,-128.25) (   0.69,-130.52)  258.32                80
 12/21/2020   17:53:29   (   0.23,-128.26) (  -0.35,-125.51)  312.25                80
 12/23/2020   06:09:50   (  -0.21,-128.29) (  -0.62,-130.12)  208.74                80