Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 24.  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)
 03/25/2021   06:09:03   (  -0.14,-128.34) (  -0.34,-129.33)  112.08                80
 03/26/2021   05:45:43   (  -0.14,-128.33) (   0.74,-124.33)  456.19                80
 03/27/2021   18:04:35   (   0.14,-128.41) (   0.23,-128.90)   55.58                80
 03/30/2021   06:05:33   (  -0.14,-128.29) (  -0.21,-128.48)   22.11                80
 04/01/2021   18:03:45   (   0.14,-128.34) (   0.10,-128.05)   32.56                80
 04/04/2021   05:59:23   (  -0.13,-128.21) (  -0.02,-127.64)   64.07                80
 04/05/2021   18:18:16   (   0.12,-128.26) (   0.98,-132.22)  450.72                80
 04/06/2021   18:00:15   (   0.12,-128.24) (  -0.10,-127.21)  116.49                80