Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 1 30.  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)
 01/31/2021   06:03:17   (  -0.03,-127.56) (  -0.24,-128.53)  110.98                80
 02/01/2021   05:45:16   (  -0.06,-127.52) (   0.82,-123.53)  455.07                80
 02/02/2021   18:01:27   (   0.02,-127.50) (   0.17,-128.09)   67.31                80
 02/03/2021   17:43:28   (   0.05,-127.46) (  -0.95,-123.10)  498.15                80
 02/05/2021   05:59:48   (  -0.00,-127.36) (  -0.08,-127.69)   38.21                80
 02/07/2021   18:00:40   (  -0.02,-127.29) (  -0.05,-127.26)    4.12                80
 02/10/2021   05:59:00   (   0.04,-127.12) (   0.10,-126.85)   30.75                80
 02/11/2021   18:15:11   (  -0.08,-127.10) (   0.90,-131.41)  492.35                80
 02/12/2021   17:57:12   (  -0.05,-127.05) (  -0.22,-126.42)   72.46                80