Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2021   14:26:55   (   0.04, -75.19) (  -0.23, -73.92)  143.85                80
 04/23/2021   02:45:55   (  -0.04, -75.17) (  -0.80, -78.52)  381.77                80
 04/24/2021   02:22:35   (  -0.04, -75.17) (   0.35, -73.53)  187.53                80
 04/25/2021   14:41:25   (   0.04, -75.19) (   0.69, -78.08)  329.74                80
 04/26/2021   14:23:25   (   0.04, -75.19) (  -0.40, -73.08)  240.03                80
 04/28/2021   02:42:25   (  -0.04, -75.18) (  -0.57, -77.69)  284.72                80
 04/29/2021   02:19:05   (  -0.04, -75.19) (   0.52, -72.69)  284.90                80
 04/30/2021   14:37:55   (   0.03, -75.21) (   0.50, -77.24)  232.14                80
 05/01/2021   14:19:56   (   0.03, -75.22) (  -0.65, -72.26)  337.85                80
 05/03/2021   02:38:55   (  -0.02, -75.22) (  -0.39, -76.85)  186.15                80
 05/04/2021   02:15:35   (  -0.02, -75.23) (   0.76, -71.86)  384.15                80