Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 11 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 11/19/2017   06:36:50   (   0.21,-135.01) (  -0.29,-137.18)  246.77                80
 11/20/2017   06:13:29   (   0.21,-135.04) (   0.83,-132.18)  325.58                80
 11/21/2017   18:32:18   (  -0.20,-135.06) (   0.18,-136.74)  192.24                80
 11/22/2017   18:14:18   (  -0.20,-135.09) (  -0.95,-131.75)  380.51                80
 11/24/2017   06:33:16   (   0.19,-135.17) (  -0.09,-136.34)  134.33                80
 11/25/2017   06:09:56   (   0.19,-135.19) (   1.04,-131.35)  437.33                80
 11/26/2017   18:28:45   (  -0.18,-135.18) (  -0.03,-135.91)   82.18                80
 11/27/2017   18:10:45   (  -0.18,-135.21) (  -1.16,-130.91)  489.85                80
 11/29/2017   06:29:43   (   0.17,-135.29) (   0.12,-135.51)   25.35                80
 12/01/2017   18:27:52   (  -0.17,-135.28) (  -0.24,-135.07)   24.20                80