Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 7 20.  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)
 07/21/2019   05:48:46   (   0.10,-127.97) (   0.73,-125.24)  311.26                80
 07/22/2019   18:10:18   (  -0.07,-128.03) (   0.33,-129.79)  200.82                80
 07/23/2019   17:46:59   (  -0.09,-128.06) (  -0.84,-124.81)  370.96                80
 07/25/2019   06:08:38   (   0.06,-128.08) (  -0.23,-129.39)  149.29                80
 07/26/2019   05:45:19   (   0.08,-128.11) (   0.88,-124.40)  421.69                80
 07/27/2019   18:06:51   (  -0.05,-128.16) (   0.11,-128.97)   91.79                80
 07/28/2019   17:43:32   (  -0.07,-128.18) (  -1.00,-123.97)  479.11                80
 07/30/2019   06:05:11   (   0.04,-128.19) (  -0.07,-128.56)   42.38                80
 08/01/2019   18:00:44   (  -0.03,-128.24) (  -0.06,-128.13)   12.47                80