Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 5 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 05/10/2021   06:10:52   (  -0.01,-127.97) (  -0.34,-129.38)  161.62                80
 05/11/2021   05:47:33   (  -0.02,-127.99) (   0.77,-124.39)  410.71                80
 05/12/2021   18:06:24   (   0.01,-128.09) (   0.21,-128.95)   98.68                80
 05/13/2021   17:48:25   (   0.02,-128.12) (  -0.91,-123.96)  473.91                80
 05/15/2021   06:07:26   (  -0.01,-128.12) (  -0.10,-128.56)   50.87                80
 05/17/2021   18:05:38   (   0.01,-128.21) (  -0.04,-128.14)    9.67                80
 05/20/2021   06:01:19   (  -0.00,-128.23) (   0.09,-127.74)   56.06                80
 05/21/2021   18:20:10   (  -0.01,-128.29) (   0.88,-132.31)  457.27                80
 05/22/2021   18:02:11   (   0.00,-128.31) (  -0.24,-127.31)  114.32                80