Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 5 29.  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)
 05/29/2021   18:04:07   (  -0.06,-128.43) (  -0.14,-128.14)   33.72                80
 05/31/2021   06:23:09   (   0.07,-128.42) (  -0.90,-132.74)  492.03                80
 06/01/2021   05:59:50   (   0.07,-128.43) (   0.23,-127.75)   77.73                80
 06/02/2021   18:18:42   (  -0.07,-128.47) (   0.77,-132.31)  437.17                80
 06/03/2021   18:00:43   (  -0.07,-128.48) (  -0.31,-127.31)  133.45                80
 06/05/2021   06:19:45   (   0.08,-128.48) (  -0.67,-131.92)  391.48                80
 06/06/2021   05:56:26   (   0.07,-128.48) (   0.41,-126.91)  178.12                80
 06/07/2021   18:15:18   (  -0.08,-128.51) (   0.60,-131.48)  338.15                80
 06/08/2021   17:57:20   (  -0.08,-128.52) (  -0.54,-126.49)  231.85                80
 06/10/2021   06:16:21   (   0.08,-128.51) (  -0.49,-131.08)  293.37                80
 06/11/2021   05:53:01   (   0.08,-128.51) (   0.59,-126.08)  275.35                80