Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 5 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 05/28/2021   04:27:18   (   0.03,-128.36) (   0.79,-124.96)  388.15                80
 05/29/2021   16:46:10   (  -0.04,-128.45) (   0.17,-129.57)  126.82                80
 05/30/2021   16:28:10   (  -0.04,-128.46) (  -0.88,-124.58)  441.66                80
 06/01/2021   04:47:10   (   0.05,-128.41) (  -0.13,-129.22)   92.24                80
 06/02/2021   04:23:50   (   0.05,-128.42) (   0.99,-124.25)  475.66                80
 06/03/2021   16:42:42   (  -0.05,-128.50) (   0.04,-128.85)   39.88                80
 06/06/2021   04:43:43   (   0.05,-128.47) (   0.07,-128.52)    5.41                80
 06/08/2021   16:41:54   (  -0.06,-128.54) (  -0.16,-128.14)   45.70                80
 06/10/2021   05:00:55   (   0.07,-128.50) (  -0.84,-132.78)  487.33                80