Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 3.  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)
 01/03/2021   18:22:37   (  -0.00,-137.22) (  -0.85,-133.54)  419.88                80
 01/05/2021   06:44:18   (  -0.01,-137.19) (  -0.20,-138.13)  106.38                80
 01/06/2021   06:21:00   (  -0.00,-137.19) (   0.93,-133.14)  461.57                80
 01/07/2021   18:42:31   (  -0.00,-137.18) (   0.14,-137.69)   58.95                80
 01/10/2021   06:40:55   (   0.02,-137.14) (   0.00,-137.31)   19.72                80
 01/12/2021   18:39:08   (  -0.01,-137.10) (  -0.07,-136.88)   26.06                80
 01/15/2021   06:37:30   (   0.00,-137.04) (   0.10,-136.47)   64.40                80
 01/16/2021   18:53:42   (  -0.00,-137.02) (   0.90,-141.04)  457.76                80