Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 12 13.  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)
 12/13/2019   05:49:04   (   0.15,-128.06) (   0.77,-125.20)  324.80                80
 12/14/2019   18:10:36   (  -0.14,-128.01) (   0.28,-129.76)  200.32                80
 12/15/2019   17:49:57   (  -0.14,-127.97) (  -0.85,-124.77)  364.97                80
 12/17/2019   06:08:59   (   0.12,-127.92) (  -0.17,-129.37)  164.17                80
 12/18/2019   05:45:39   (   0.13,-127.88) (   0.90,-124.36)  400.63                80
 12/19/2019   18:07:11   (  -0.12,-127.82) (   0.14,-128.92)  125.40                80
 12/20/2019   17:46:33   (  -0.12,-127.78) (  -1.00,-123.93)  439.46                80
 12/22/2019   06:05:33   (   0.11,-127.73) (  -0.09,-128.51)   90.14                80
 12/23/2019   05:42:15   (   0.12,-127.69) (   1.04,-123.52)  474.17                80
 12/24/2019   18:01:07   (  -0.11,-127.61) (  -0.01,-128.08)   52.91                80