Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 9 17.  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)
 09/17/2021   14:45:04   (   0.09, -75.21) (   0.73, -78.10)  328.82                80
 09/18/2021   14:21:45   (   0.08, -75.22) (  -0.38, -73.10)  240.88                80
 09/20/2021   02:43:25   (  -0.09, -75.21) (  -0.67, -77.69)  282.99                80
 09/21/2021   02:20:07   (  -0.08, -75.22) (   0.50, -72.71)  287.17                80
 09/22/2021   14:41:37   (   0.09, -75.26) (   0.57, -77.25)  228.00                80
 09/23/2021   14:18:19   (   0.08, -75.28) (  -0.60, -72.27)  342.74                80
 09/25/2021   02:39:59   (  -0.10, -75.28) (  -0.44, -76.86)  179.73                80
 09/26/2021   02:16:39   (  -0.09, -75.30) (   0.67, -71.87)  391.10                80
 09/27/2021   14:38:11   (   0.11, -75.34) (   0.34, -76.43)  123.37                80
 09/28/2021   14:14:51   (   0.10, -75.36) (  -0.77, -71.43)  447.79                80
 09/30/2021   02:36:32   (  -0.12, -75.38) (  -0.27, -76.02)   73.93                80