Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 2 17.  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)
 02/17/2021   17:51:04   (   0.11,-127.99) (  -0.41,-125.58)  273.99                80
 02/19/2021   06:12:44   (  -0.12,-127.97) (  -0.60,-130.18)  251.76                80
 02/20/2021   05:49:25   (  -0.11,-128.00) (   0.53,-125.19)  320.30                80
 02/21/2021   18:10:56   (   0.12,-128.11) (   0.48,-129.75)  186.78                80
 02/22/2021   17:47:36   (   0.11,-128.13) (  -0.65,-124.76)  384.85                80
 02/24/2021   06:09:16   (  -0.13,-128.10) (  -0.40,-129.35)  142.11                80
 02/25/2021   05:45:56   (  -0.12,-128.12) (   0.73,-124.35)  429.25                80
 02/26/2021   18:07:27   (   0.13,-128.22) (   0.29,-128.91)   78.87                80
 02/27/2021   17:44:08   (   0.12,-128.24) (  -0.84,-123.92)  492.34                80
 03/01/2021   06:05:47   (  -0.14,-128.20) (  -0.20,-128.51)   35.26                80