Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-C
TLE Epoch: 2021 4 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2021   06:22:34   (  -0.04,-137.20) (   0.90,-133.14)  463.50                80
 04/21/2021   18:41:25   (   0.03,-137.20) (   0.14,-137.69)   55.85                80
 04/24/2021   06:42:26   (  -0.03,-137.20) (  -0.07,-137.29)   11.59                80
 04/26/2021   18:40:37   (   0.03,-137.19) (  -0.01,-136.86)   36.97                80
 04/28/2021   06:59:39   (  -0.03,-137.17) (  -0.97,-141.47)  488.85                80
 04/29/2021   06:36:19   (  -0.03,-137.16) (   0.14,-136.47)   78.92                80
 04/30/2021   18:55:11   (   0.02,-137.14) (   0.87,-141.03)  442.90                80
 05/01/2021   18:37:11   (   0.02,-137.13) (  -0.24,-136.04)  124.47                80
 05/03/2021   06:56:11   (  -0.02,-137.10) (  -0.81,-140.63)  402.67                80