Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 7 12.  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)
 07/12/2021   06:07:08   (   0.12,-127.91) (  -0.01,-128.59)   77.01                80
 07/13/2021   05:43:47   (   0.14,-127.87) (   1.07,-123.58)  487.61                80
 07/14/2021   18:02:38   (  -0.13,-127.80) (  -0.03,-128.14)   40.16                80
 07/17/2021   06:03:37   (   0.12,-127.72) (   0.11,-127.74)    2.57                80
 07/19/2021   18:01:49   (  -0.12,-127.59) (  -0.20,-127.31)   32.46                80
 07/21/2021   06:20:47   (   0.10,-127.55) (  -0.85,-131.89)  494.66                80
 07/22/2021   05:57:27   (   0.12,-127.50) (   0.23,-126.89)   68.64                80
 07/23/2021   18:16:18   (  -0.10,-127.39) (   0.82,-131.45)  462.98                80
 07/24/2021   17:58:19   (  -0.12,-127.34) (  -0.32,-126.46)  100.79                80