Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-C
TLE Epoch: 2021 4 9.  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)
 04/09/2021   06:51:36   (  -0.04,-137.20) (   0.00,-139.92)  302.21                 0
 04/10/2021   06:29:26   (  -0.04,-137.20) (   0.51,-134.79)  274.58                80
 04/11/2021   18:50:58   (   0.04,-137.20) (   0.50,-139.35)  244.90                80
 04/12/2021   18:27:39   (   0.04,-137.19) (  -0.61,-134.36)  323.39                80
 04/14/2021   06:49:18   (  -0.04,-137.17) (  -0.46,-138.94)  203.34                80
 04/15/2021   06:26:00   (  -0.04,-137.16) (   0.70,-133.96)  364.46                80
 04/16/2021   18:44:51   (   0.03,-137.15) (   0.36,-138.52)  156.38                80
 04/17/2021   18:26:52   (   0.03,-137.13) (  -0.75,-133.52)  410.89                80
 04/19/2021   06:43:12   (  -0.03,-137.09) (  -0.27,-138.12)  117.54                80
 04/20/2021   06:25:12   (  -0.02,-137.07) (   0.83,-133.12)  449.24                80
 04/21/2021   18:41:25   (   0.02,-137.05) (   0.15,-137.69)   72.89                80
 04/22/2021   18:23:25   (   0.02,-137.03) (  -0.96,-132.70)  493.62                80