Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 10 20.  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)
 10/21/2017   00:39:35   (  -0.03,-135.12) (  -0.46,-137.08)  223.15                80
 10/22/2017   00:30:46   (  -0.04,-135.09) (   0.18,-134.28)   93.78                80
 10/23/2017   00:19:15   (  -0.05,-135.07) (   0.76,-131.47)  410.53                80
 10/24/2017   12:49:37   (   0.01,-135.12) (   0.99,-139.40)  487.82                80
 10/25/2017   12:38:07   (   0.02,-135.09) (   0.35,-136.60)  171.58                80
 10/26/2017   12:29:18   (   0.02,-135.06) (  -0.29,-133.80)  144.50                80
 10/27/2017   12:17:47   (   0.03,-135.02) (  -0.87,-130.98)  460.45                80
 10/29/2017   00:48:05   (   0.01,-134.86) (  -0.92,-138.89)  459.80                80
 10/30/2017   00:36:36   (   0.00,-134.83) (  -0.28,-136.09)  144.11                80
 10/31/2017   00:27:47   (  -0.00,-134.79) (   0.36,-133.29)  171.38                80
 11/01/2017   00:16:17   (  -0.01,-134.75) (   1.00,-130.49)  486.82                80
 11/02/2017   12:46:36   (  -0.03,-134.79) (   0.83,-138.40)  412.84                80
 11/03/2017   12:35:07   (  -0.02,-134.74) (   0.18,-135.60)   97.79                80