Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 07/22/2021   17:47:13   (  -0.12,-127.47) (  -0.91,-123.94)  402.36                80
 07/24/2021   06:06:12   (   0.10,-127.42) (  -0.17,-128.52)  126.20                80
 07/25/2021   05:42:53   (   0.12,-127.37) (   0.98,-123.54)  437.08                80
 07/26/2021   18:04:25   (  -0.10,-127.28) (   0.11,-128.08)   92.59                80
 07/27/2021   17:43:46   (  -0.12,-127.23) (  -1.05,-123.10)  471.52                80
 07/29/2021   06:02:46   (   0.10,-127.19) (  -0.04,-127.68)   56.26                80
 07/31/2021   18:00:58   (  -0.09,-127.04) (  -0.03,-127.24)   23.55                80
 08/03/2021   05:56:39   (   0.09,-126.94) (   0.11,-126.83)   12.25                80