Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 2 20.  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)
 02/20/2021   05:49:24   (  -0.11,-127.99) (   0.48,-125.18)  319.51                80
 02/21/2021   18:10:56   (   0.13,-128.11) (   0.47,-129.75)  187.14                80
 02/22/2021   17:47:36   (   0.11,-128.13) (  -0.66,-124.76)  384.42                80
 02/24/2021   06:09:16   (  -0.13,-128.09) (  -0.40,-129.35)  143.34                80
 02/25/2021   05:45:56   (  -0.12,-128.11) (   0.73,-124.36)  427.89                80
 02/26/2021   18:07:28   (   0.13,-128.21) (   0.29,-128.92)   79.80                80
 02/27/2021   17:44:08   (   0.13,-128.23) (  -0.84,-123.92)  491.32                80
 03/01/2021   06:05:47   (  -0.14,-128.19) (  -0.20,-128.51)   37.07                80
 03/03/2021   18:01:19   (   0.14,-128.30) (   0.10,-128.08)   24.93                80