Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 12 22.  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)
 12/24/2019   18:03:49   (  -0.10,-128.11) (  -0.10,-128.10)    1.46                80
 12/27/2019   05:59:31   (   0.10,-128.21) (   0.20,-127.71)   57.20                80
 12/28/2019   18:21:04   (  -0.08,-128.21) (   0.83,-132.27)  462.15                80
 12/29/2019   17:57:45   (  -0.08,-128.23) (  -0.31,-127.28)  109.32                80
 12/31/2019   06:19:27   (   0.07,-128.31) (  -0.73,-131.87)  406.44                80
 01/01/2020   05:56:08   (   0.08,-128.33) (   0.41,-126.88)  164.77                80
 01/02/2020   18:17:40   (  -0.06,-128.32) (   0.61,-131.44)  355.10                80
 01/03/2020   17:54:22   (  -0.07,-128.34) (  -0.52,-126.45)  216.04                80
 01/05/2020   06:16:03   (   0.06,-128.41) (  -0.51,-131.05)  300.43                80