Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 3 16.  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)
 03/16/2021   18:32:46   (   0.04,-137.21) (  -0.22,-136.00)  138.11                80
 03/18/2021   06:54:25   (  -0.04,-137.20) (  -0.79,-140.60)  386.29                80
 03/19/2021   06:31:06   (  -0.03,-137.20) (   0.34,-135.60)  182.48                80
 03/20/2021   18:52:37   (   0.04,-137.20) (   0.68,-140.16)  337.48                80
 03/21/2021   18:29:17   (   0.03,-137.19) (  -0.39,-135.16)  230.81                80
 03/23/2021   06:50:56   (  -0.03,-137.17) (  -0.62,-139.76)  295.12                80
 03/24/2021   06:27:36   (  -0.03,-137.15) (   0.52,-134.77)  272.73                80
 03/25/2021   18:46:28   (   0.03,-137.14) (   0.51,-139.32)  248.60                80
 03/26/2021   18:28:27   (   0.03,-137.13) (  -0.57,-134.32)  319.00                80
 03/28/2021   06:44:47   (  -0.03,-137.09) (  -0.43,-138.92)  207.90                80
 03/29/2021   06:26:46   (  -0.03,-137.07) (   0.65,-133.91)  359.39                80