Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 9 8.  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)
 09/08/2021   06:03:55   (   0.26,-128.22) (   0.17,-128.60)   42.40                80
 09/10/2021   18:03:31   (  -0.27,-128.15) (  -0.27,-128.16)    0.55                 7
 09/13/2021   06:03:04   (   0.28,-128.16) (   0.36,-127.76)   45.32                80
 09/14/2021   18:19:15   (  -0.31,-128.08) (   0.62,-132.33)  482.93                80
 09/15/2021   18:01:14   (  -0.29,-128.06) (  -0.48,-127.33)   84.76                80
 09/17/2021   06:17:34   (   0.31,-128.08) (  -0.53,-131.93)  438.05                80
 09/18/2021   05:59:34   (   0.30,-128.06) (   0.57,-126.93)  129.29                80
 09/19/2021   18:15:43   (  -0.32,-127.98) (   0.47,-131.48)  399.41                80
 09/20/2021   17:57:43   (  -0.31,-127.96) (  -0.63,-126.48)  168.12                80