Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 9 8.  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)
 09/08/2021   06:52:24   (   0.04,-137.20) (  -0.70,-140.61)  387.42                80
 09/09/2021   06:34:25   (   0.04,-137.20) (   0.41,-135.61)  181.93                80
 09/10/2021   18:50:36   (  -0.04,-137.20) (   0.61,-140.17)  337.50                80
 09/11/2021   18:32:37   (  -0.03,-137.20) (  -0.50,-135.17)  231.37                80
 09/13/2021   06:48:57   (   0.03,-137.19) (  -0.55,-139.76)  293.76                80
 09/14/2021   06:30:57   (   0.03,-137.18) (   0.56,-134.77)  274.48                80
 09/15/2021   18:47:09   (  -0.03,-137.16) (   0.46,-139.32)  246.59                80
 09/16/2021   18:29:09   (  -0.03,-137.15) (  -0.65,-134.33)  321.34                80
 09/18/2021   06:48:10   (   0.03,-137.13) (  -0.40,-138.92)  204.67                80
 09/19/2021   06:24:50   (   0.02,-137.11) (   0.71,-133.92)  363.21                80
 09/20/2021   18:43:41   (  -0.02,-137.10) (   0.30,-138.48)  158.14                80
 09/21/2021   18:25:42   (  -0.02,-137.08) (  -0.81,-133.48)  409.59                80