Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 5 31.  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)
 05/31/2021   06:23:09   (   0.07,-128.42) (  -0.89,-132.74)  492.28                80
 06/01/2021   05:59:50   (   0.07,-128.42) (   0.24,-127.75)   77.36                80
 06/02/2021   18:18:42   (  -0.07,-128.47) (   0.76,-132.31)  437.63                80
 06/03/2021   18:00:43   (  -0.07,-128.48) (  -0.31,-127.31)  132.82                80
 06/05/2021   06:19:45   (   0.08,-128.47) (  -0.67,-131.92)  392.50                80
 06/06/2021   05:56:26   (   0.07,-128.47) (   0.41,-126.92)  176.96                80
 06/07/2021   18:15:18   (  -0.08,-128.50) (   0.59,-131.48)  339.35                80
 06/08/2021   17:57:20   (  -0.08,-128.51) (  -0.54,-126.49)  230.48                80
 06/10/2021   06:16:21   (   0.08,-128.49) (  -0.49,-131.09)  295.16                80
 06/11/2021   05:53:02   (   0.08,-128.49) (   0.59,-126.08)  273.41                80
 06/12/2021   18:11:54   (  -0.09,-128.50) (   0.42,-130.65)  245.06                80
 06/13/2021   17:53:55   (  -0.09,-128.50) (  -0.72,-125.66)  323.91                80