Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 11 21.  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)
 11/22/2017   18:14:18   (  -0.20,-135.09) (  -0.96,-131.75)  380.33                80
 11/24/2017   06:33:16   (   0.19,-135.16) (  -0.08,-136.34)  134.58                80
 11/25/2017   06:09:56   (   0.19,-135.19) (   1.05,-131.35)  436.98                80
 11/26/2017   18:28:45   (  -0.18,-135.18) (  -0.04,-135.91)   82.64                80
 11/27/2017   18:10:45   (  -0.19,-135.21) (  -1.17,-130.92)  489.35                80
 11/29/2017   06:29:43   (   0.18,-135.28) (   0.13,-135.51)   25.94                80
 12/01/2017   18:27:51   (  -0.17,-135.27) (  -0.19,-135.06)   23.43                80
 12/03/2017   06:46:50   (   0.16,-135.35) (  -0.78,-139.67)  491.96                80
 12/04/2017   06:23:29   (   0.16,-135.36) (   0.29,-134.67)   78.06                80
 12/05/2017   18:42:18   (  -0.15,-135.31) (   0.72,-139.23)  446.08                80