Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/01/2021   15:31:36   (  -0.04,-128.49) (   0.47,-130.54)  235.08                80
 06/02/2021   15:22:33   (  -0.03,-128.50) (  -0.25,-127.69)   93.43                80
 06/03/2021   15:10:48   (  -0.03,-128.51) (  -0.91,-124.82)  421.85                80
 06/05/2021   03:43:28   (   0.04,-128.43) (  -0.94,-132.63)  479.10                80
 06/06/2021   03:31:44   (   0.04,-128.44) (  -0.30,-129.76)  151.25                80
 06/07/2021   03:17:21   (   0.04,-128.45) (   0.41,-126.90)  176.53                80
 06/09/2021   15:38:05   (  -0.05,-128.53) (   0.74,-131.81)  374.46                80
 06/10/2021   15:26:21   (  -0.05,-128.54) (   0.07,-128.94)   47.06                80
 06/11/2021   15:17:16   (  -0.06,-128.54) (  -0.60,-126.07)  280.33                80
 06/14/2021   03:38:15   (   0.07,-128.45) (  -0.52,-131.04)  295.59                80