Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 9 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2018   01:32:26   (  -0.17,-135.46) (  -1.00,-139.13)  419.03                80
 09/22/2018   01:20:51   (  -0.18,-135.48) (  -0.40,-136.30)   94.45                80
 09/23/2018   01:11:57   (  -0.19,-135.49) (   0.27,-133.48)  230.03                80
 09/25/2018   13:30:25   (   0.14,-135.63) (   0.84,-138.50)  328.56                80
 09/26/2018   13:18:51   (   0.16,-135.64) (   0.19,-135.67)    5.22                80
 09/27/2018   13:09:56   (   0.16,-135.65) (  -0.47,-132.85)  319.00                80
 09/30/2018   01:28:40   (  -0.12,-135.57) (  -0.69,-137.93)  269.56                80
 10/01/2018   01:19:46   (  -0.13,-135.57) (  -0.01,-135.11)   53.51                80
 10/02/2018   01:08:10   (  -0.14,-135.57) (   0.60,-132.27)  376.44                80