Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 1 3.  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)
 01/04/2021   14:38:34   (   0.02, -75.20) (   0.48, -77.32)  240.87                80
 01/05/2021   14:20:34   (   0.02, -75.20) (  -0.59, -72.32)  327.88                80
 01/07/2021   02:39:36   (  -0.02, -75.17) (  -0.40, -76.93)  199.71                80
 01/08/2021   02:16:17   (  -0.02, -75.17) (   0.68, -71.92)  369.12                80
 01/09/2021   14:35:10   (  -0.01, -75.20) (   0.27, -76.50)  148.19                80
 01/10/2021   14:17:12   (  -0.01, -75.20) (  -0.86, -71.51)  420.99                80
 01/12/2021   02:36:13   (   0.01, -75.18) (  -0.19, -76.11)  105.85                80
 01/13/2021   02:12:54   (   0.00, -75.18) (   0.89, -71.11)  463.58                80
 01/14/2021   14:31:46   (   0.00, -75.22) (   0.12, -75.67)   51.96                80
 01/17/2021   02:32:49   (  -0.01, -75.22) (  -0.03, -75.28)    6.74                80