Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 9 3.  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)
 09/03/2021   06:07:24   (   0.23,-128.26) (  -0.04,-129.43)  132.91                80
 09/04/2021   05:49:24   (   0.21,-128.25) (   1.05,-124.43)  435.85                80
 09/05/2021   18:05:34   (  -0.25,-128.20) (  -0.05,-128.99)   90.23                80
 09/06/2021   17:47:34   (  -0.23,-128.19) (  -1.14,-123.99)  478.59                80
 09/08/2021   06:03:55   (   0.26,-128.21) (   0.20,-128.60)   43.62                80
 09/10/2021   18:02:04   (  -0.27,-128.14) (  -0.25,-128.15)    3.28                80
 09/13/2021   06:03:04   (   0.28,-128.14) (   0.34,-127.75)   42.96                80
 09/14/2021   18:19:14   (  -0.31,-128.06) (   0.65,-132.32)  485.74                80
 09/15/2021   18:01:14   (  -0.29,-128.04) (  -0.45,-127.32)   81.62                80