Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 5 22.  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)
 05/23/2021   04:30:45   (   0.00,-128.28) (   0.57,-125.66)  298.55                80
 05/24/2021   16:49:37   (  -0.01,-128.38) (   0.40,-130.27)  215.51                80
 05/25/2021   16:31:36   (  -0.01,-128.40) (  -0.66,-125.28)  353.60                80
 05/27/2021   04:50:38   (   0.02,-128.35) (  -0.30,-129.94)  179.46                80
 05/28/2021   04:27:17   (   0.01,-128.36) (   0.76,-124.95)  388.47                80
 05/29/2021   16:46:09   (  -0.03,-128.44) (   0.21,-129.56)  127.69                80
 05/30/2021   16:28:10   (  -0.03,-128.45) (  -0.90,-124.59)  440.71                80
 06/01/2021   04:47:09   (   0.04,-128.41) (  -0.17,-129.22)   92.25                80
 06/02/2021   04:23:50   (   0.03,-128.42) (   0.95,-124.24)  475.63                80
 06/03/2021   16:42:42   (  -0.04,-128.49) (   0.03,-128.85)   41.17                80