Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 3 21.  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)
 03/21/2021   18:29:17   (   0.04,-137.19) (  -0.44,-135.17)  231.17                80
 03/23/2021   06:50:56   (  -0.04,-137.17) (  -0.63,-139.75)  294.64                80
 03/24/2021   06:27:36   (  -0.04,-137.16) (   0.51,-134.76)  273.24                80
 03/25/2021   18:46:28   (   0.04,-137.15) (   0.52,-139.32)  247.99                80
 03/26/2021   18:28:28   (   0.03,-137.13) (  -0.61,-134.33)  319.68                80
 03/28/2021   06:47:26   (  -0.04,-137.10) (  -0.45,-138.91)  207.08                80
 03/29/2021   06:24:07   (  -0.03,-137.08) (   0.68,-133.92)  360.22                80
 03/30/2021   18:42:58   (   0.04,-137.06) (   0.34,-138.48)  162.16                80
 03/31/2021   18:24:58   (   0.03,-137.04) (  -0.74,-133.48)  404.67                80
 04/02/2021   06:43:57   (  -0.03,-136.99) (  -0.27,-138.08)  123.55                80
 04/03/2021   06:20:37   (  -0.03,-136.96) (   0.81,-133.07)  442.65                80