Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-C
TLE Epoch: 2021 12 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)
 12/21/2021   06:55:28   (   0.03,-137.19) (  -0.76,-140.59)  387.72                80
 12/22/2021   06:32:09   (   0.03,-137.18) (   0.38,-135.60)  180.65                80
 12/23/2021   18:51:02   (  -0.03,-137.19) (   0.65,-140.16)  338.97                80
 12/24/2021   18:33:03   (  -0.03,-137.18) (  -0.50,-135.17)  229.31                80
 12/26/2021   06:52:03   (   0.02,-137.15) (  -0.56,-139.76)  297.03                80
 12/27/2021   06:28:45   (   0.02,-137.14) (   0.58,-134.77)  270.75                80
 12/28/2021   18:47:36   (  -0.02,-137.13) (   0.49,-139.32)  249.99                80
 12/29/2021   18:29:38   (  -0.02,-137.12) (  -0.66,-134.34)  317.40                80
 12/31/2021   06:48:38   (   0.02,-137.08) (  -0.40,-138.92)  210.59                80
 01/01/2022   06:25:20   (   0.02,-137.06) (   0.74,-133.94)  356.12                80
 01/02/2022   18:44:11   (  -0.01,-137.03) (   0.31,-138.49)  166.29                80