Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2021   18:43:28   (   0.03,-137.20) (   0.32,-138.53)  150.98                80
 06/26/2021   18:25:30   (   0.03,-137.20) (  -0.82,-133.54)  417.93                80
 06/28/2021   06:41:50   (  -0.02,-137.19) (  -0.24,-138.13)  107.19                80
 06/29/2021   06:23:52   (  -0.02,-137.19) (   0.90,-133.14)  461.57                80
 06/30/2021   18:40:04   (   0.02,-137.19) (   0.12,-137.70)   58.00                80
 07/03/2021   06:41:06   (  -0.02,-137.17) (  -0.02,-137.30)   14.76                80
 07/05/2021   18:39:19   (   0.02,-137.16) (  -0.04,-136.86)   33.25                80
 07/07/2021   06:58:19   (  -0.02,-137.13) (  -1.00,-141.45)  492.91                80
 07/08/2021   06:35:00   (  -0.02,-137.12) (   0.14,-136.47)   74.54                80