Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2020 12 13.  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)
 12/13/2020   06:16:43   (  -0.21,-128.19) (  -0.99,-131.79)  409.94                80
 12/14/2020   05:58:43   (  -0.23,-128.20) (   0.11,-126.79)  161.07                80
 12/15/2020   18:14:56   (   0.21,-128.20) (   0.89,-131.36)  359.39                80
 12/16/2020   17:56:56   (   0.23,-128.21) (  -0.21,-126.36)  211.26                80
 12/18/2020   06:13:16   (  -0.21,-128.24) (  -0.82,-130.95)  308.85                80
 12/19/2020   05:55:17   (  -0.23,-128.25) (   0.29,-125.96)  261.98                80
 12/20/2020   18:11:29   (   0.21,-128.25) (   0.71,-130.52)  258.40                80
 12/21/2020   17:53:30   (   0.23,-128.26) (  -0.40,-125.53)  312.16                80
 12/23/2020   06:09:50   (  -0.21,-128.29) (  -0.63,-130.12)  208.60                80
 12/24/2020   05:51:51   (  -0.22,-128.30) (   0.48,-125.12)  361.96                80
 12/25/2020   18:08:03   (   0.20,-128.29) (   0.51,-129.69)  158.86                80
 12/26/2020   17:50:03   (   0.22,-128.30) (  -0.60,-124.69)  411.10                80