Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2020 12 6.  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)
 12/06/2020   18:03:47   (   0.24,-128.05) (   0.22,-128.01)    3.96                80
 12/09/2020   06:02:08   (  -0.23,-128.12) (  -0.14,-127.61)   57.04                80
 12/10/2020   18:18:21   (   0.22,-128.12) (   1.10,-132.19)  462.32                80
 12/11/2020   18:00:22   (   0.23,-128.14) (  -0.01,-127.19)  108.69                80
 12/13/2020   06:16:42   (  -0.21,-128.17) (  -1.02,-131.78)  411.18                80
 12/14/2020   05:58:43   (  -0.23,-128.19) (   0.08,-126.79)  159.58                80
 12/15/2020   18:14:55   (   0.21,-128.19) (   0.92,-131.35)  360.69                80
 12/16/2020   17:56:56   (   0.23,-128.19) (  -0.19,-126.35)  209.75                80
 12/18/2020   06:13:16   (  -0.21,-128.22) (  -0.84,-130.95)  311.04                80
 12/19/2020   05:55:16   (  -0.23,-128.23) (   0.26,-125.95)  259.57                80