Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 12 1.  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)
 12/01/2021   18:08:23   (  -0.22,-128.19) (  -0.04,-128.96)   88.31                80
 12/02/2021   17:45:03   (  -0.22,-128.16) (  -1.14,-123.96)  478.10                80
 12/04/2021   06:06:42   (   0.21,-128.10) (   0.10,-128.55)   51.87                80
 12/06/2021   18:02:16   (  -0.20,-128.04) (  -0.20,-128.12)    8.20                80
 12/09/2021   06:00:36   (   0.18,-127.94) (   0.25,-127.71)   27.13                80
 12/10/2021   18:22:08   (  -0.17,-127.92) (   0.79,-132.26)  494.98                80
 12/11/2021   17:58:49   (  -0.17,-127.89) (  -0.31,-127.26)   70.72                80
 12/13/2021   06:20:28   (   0.16,-127.81) (  -0.74,-131.85)  459.94                80
 12/14/2021   05:57:09   (   0.17,-127.78) (   0.36,-126.85)  105.48                80