Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 6 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)
 06/21/2019   06:12:06   (   0.14,-128.13) (  -0.33,-130.25)  241.94                80
 06/22/2019   05:48:47   (   0.16,-128.10) (   0.78,-125.26)  323.92                80
 06/23/2019   18:10:19   (  -0.14,-128.12) (   0.23,-129.82)  193.92                80
 06/24/2019   17:47:00   (  -0.16,-128.09) (  -0.87,-124.83)  372.06                80
 06/26/2019   06:08:39   (   0.14,-128.00) (  -0.20,-129.41)  161.54                80
 06/27/2019   05:45:21   (   0.16,-127.97) (   0.96,-124.43)  403.90                80
 06/28/2019   18:06:52   (  -0.13,-127.97) (   0.11,-128.98)  114.98                80
 06/29/2019   17:43:33   (  -0.15,-127.94) (  -1.05,-123.99)  450.30                80
 07/01/2019   06:05:13   (   0.13,-127.83) (  -0.02,-128.58)   84.26                80
 07/02/2019   05:41:53   (   0.15,-127.79) (   1.09,-123.58)  480.09                80
 07/03/2019   18:03:26   (  -0.13,-127.78) (  -0.08,-128.14)   40.73                80