Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 4 1.  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)
 04/01/2021   14:38:15   (   0.04, -75.22) (   0.50, -77.28)  234.19                80
 04/02/2021   14:20:15   (   0.04, -75.22) (  -0.64, -72.29)  334.65                80
 04/04/2021   02:39:14   (  -0.03, -75.19) (  -0.42, -76.87)  192.46                80
 04/05/2021   02:15:54   (  -0.03, -75.19) (   0.72, -71.88)  376.55                80
 04/06/2021   14:34:45   (   0.03, -75.22) (   0.30, -76.45)  139.78                80
 04/07/2021   14:16:45   (   0.03, -75.22) (  -0.79, -71.44)  429.98                80
 04/09/2021   02:35:44   (  -0.03, -75.20) (  -0.22, -76.04)   95.40                80
 04/10/2021   02:12:25   (  -0.03, -75.21) (   0.92, -71.05)  474.79                80
 04/11/2021   14:31:16   (   0.03, -75.26) (   0.09, -75.61)   39.96                80
 04/14/2021   02:29:35   (  -0.03, -75.27) (  -0.02, -75.21)    6.77                80