Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 6 4.  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)
 06/05/2021   06:19:45   (   0.08,-128.46) (  -0.68,-131.91)  393.05                80
 06/06/2021   05:56:26   (   0.08,-128.46) (   0.40,-126.91)  176.22                80
 06/07/2021   18:15:18   (  -0.08,-128.49) (   0.61,-131.47)  340.50                80
 06/08/2021   17:57:19   (  -0.08,-128.50) (  -0.53,-126.49)  229.11                80
 06/10/2021   06:16:21   (   0.08,-128.48) (  -0.50,-131.08)  296.75                80
 06/11/2021   05:53:02   (   0.09,-128.47) (   0.64,-126.09)  271.61                80
 06/12/2021   18:11:55   (  -0.09,-128.48) (   0.37,-130.65)  247.20                80
 06/13/2021   17:53:55   (  -0.09,-128.48) (  -0.71,-125.65)  321.55                80
 06/15/2021   06:12:56   (   0.10,-128.46) (  -0.32,-130.25)  204.62                80
 06/16/2021   05:49:38   (   0.10,-128.45) (   0.83,-125.26)  363.11                80
 06/17/2021   18:08:30   (  -0.11,-128.44) (   0.19,-129.82)  157.26                80