Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 2 3.  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)
 02/03/2021   17:43:28   (   0.05,-127.47) (  -0.94,-123.09)  498.84                80
 02/05/2021   05:59:48   (  -0.00,-127.36) (  -0.09,-127.69)   37.60                80
 02/07/2021   18:00:40   (  -0.02,-127.30) (  -0.03,-127.26)    4.94                80
 02/10/2021   05:59:00   (   0.04,-127.13) (   0.08,-126.85)   32.31                80
 02/11/2021   18:15:12   (  -0.08,-127.12) (   0.86,-131.42)  490.22                80
 02/12/2021   17:57:12   (  -0.05,-127.07) (  -0.20,-126.42)   74.65                80
 02/14/2021   06:13:32   (   0.10,-126.95) (  -0.81,-131.01)  463.49                80
 02/15/2021   05:55:31   (   0.07,-126.90) (   0.26,-126.01)  101.58                80
 02/16/2021   18:11:44   (  -0.11,-126.88) (   0.69,-130.58)  420.91                80