Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 9 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)
 09/21/2021   02:20:06   (  -0.07, -75.19) (   0.47, -72.70)  283.38                80
 09/22/2021   14:41:38   (   0.08, -75.20) (   0.54, -77.26)  234.14                80
 09/23/2021   14:18:18   (   0.08, -75.21) (  -0.57, -72.27)  335.02                80
 09/25/2021   02:39:58   (  -0.09, -75.19) (  -0.47, -76.86)  189.91                80
 09/26/2021   02:16:39   (  -0.09, -75.19) (   0.64, -71.86)  379.41                80
 09/27/2021   14:38:10   (   0.10, -75.21) (   0.37, -76.42)  137.39                80
 09/28/2021   14:14:51   (   0.10, -75.22) (  -0.74, -71.42)  432.21                80
 09/30/2021   02:36:31   (  -0.11, -75.21) (  -0.30, -76.02)   92.01                80
 10/01/2021   02:13:12   (  -0.11, -75.22) (   0.81, -71.02)  477.71                80
 10/02/2021   14:34:43   (   0.12, -75.24) (   0.19, -75.58)   38.48                80