Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 4 25.  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)
 04/26/2019   18:07:26   (  -0.08,-127.96) (   0.31,-129.79)  208.09                80
 04/27/2019   17:49:27   (  -0.08,-128.00) (  -0.77,-124.79)  364.24                80
 04/29/2019   06:08:29   (   0.09,-128.01) (  -0.19,-129.40)  158.66                80
 04/30/2019   05:45:10   (   0.09,-128.03) (   0.89,-124.41)  413.46                80
 05/01/2019   18:04:02   (  -0.09,-128.11) (   0.10,-128.97)   98.12                80
 05/02/2019   17:46:04   (  -0.09,-128.14) (  -1.05,-123.99)  473.83                80
 05/04/2019   06:05:05   (   0.09,-128.14) (   0.02,-128.58)   49.78                80
 05/06/2019   18:03:18   (  -0.10,-128.23) (  -0.12,-128.15)    8.77                80
 05/09/2019   05:59:00   (   0.11,-128.24) (   0.19,-127.75)   54.80                80