Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 6 10.  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)
 06/10/2021   18:06:21   (  -0.09,-128.48) (   0.02,-129.01)   59.31                80
 06/13/2021   06:07:21   (   0.09,-128.46) (   0.07,-128.61)   16.91                80
 06/15/2021   18:05:32   (  -0.10,-128.45) (  -0.16,-128.17)   31.07                80
 06/17/2021   06:24:33   (   0.11,-128.44) (  -0.87,-132.77)  494.43                80
 06/18/2021   06:01:13   (   0.11,-128.42) (   0.26,-127.78)   73.11                80
 06/19/2021   18:20:03   (  -0.11,-128.40) (   0.79,-132.33)  448.85                80
 06/20/2021   18:02:04   (  -0.11,-128.39) (  -0.33,-127.34)  119.09                80
 06/22/2021   06:21:04   (   0.11,-128.37) (  -0.67,-131.94)  406.57                80
 06/23/2021   05:57:44   (   0.11,-128.35) (   0.41,-126.94)  160.12                80