Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2020 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2020   06:04:35   (  -0.22,-128.26) (  -0.25,-128.50)   27.06                80
 12/23/2020   18:05:28   (   0.21,-128.25) (   0.17,-128.06)   22.22                80
 12/26/2020   06:03:50   (  -0.20,-128.27) (  -0.04,-127.67)   69.52                80
 12/27/2020   18:20:02   (   0.18,-128.26) (   1.09,-132.22)  451.98                80
 12/28/2020   18:02:03   (   0.20,-128.26) (  -0.06,-127.24)  117.20                80
 12/30/2020   06:18:25   (  -0.17,-128.26) (  -0.97,-131.83)  407.03                80
 12/31/2020   06:00:25   (  -0.19,-128.26) (   0.12,-126.83)  162.00                80
 01/01/2021   18:16:37   (   0.17,-128.24) (   0.86,-131.40)  360.29                80
 01/02/2021   17:58:38   (   0.19,-128.23) (  -0.23,-126.40)  208.27                80