Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 5 27.  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) (  -0.13,-128.14)   33.70                80
 05/31/2021   06:23:08   (   0.07,-128.42) (  -0.91,-132.73)  491.79                80
 06/01/2021   05:59:50   (   0.07,-128.43) (   0.22,-127.75)   78.01                80
 06/02/2021   18:18:42   (  -0.07,-128.47) (   0.78,-132.31)  436.96                80
 06/03/2021   18:00:44   (  -0.07,-128.49) (  -0.35,-127.32)  133.70                80
 06/05/2021   06:19:45   (   0.07,-128.48) (  -0.69,-131.91)  390.99                80
 06/06/2021   05:56:26   (   0.07,-128.49) (   0.39,-126.91)  178.68                80
 06/07/2021   18:15:18   (  -0.08,-128.52) (   0.61,-131.47)  337.72                80
 06/08/2021   17:57:19   (  -0.07,-128.53) (  -0.52,-126.49)  232.35                80
 06/10/2021   06:16:21   (   0.08,-128.52) (  -0.51,-131.08)  292.64                80