Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 7 21.  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)
 07/21/2015   23:04:15   (   0.21,-135.13) (   0.87,-132.33)  319.90                80
 07/24/2015   11:23:35   (  -0.23,-135.12) (   0.32,-137.61)  282.87                80
 07/25/2015   11:15:02   (  -0.23,-135.12) (  -0.30,-134.88)   27.99                80
 07/26/2015   11:03:48   (  -0.23,-135.12) (  -0.93,-132.16)  338.46                80
 07/28/2015   23:23:27   (   0.25,-135.11) (  -0.28,-137.50)  272.12                80
 07/29/2015   23:14:53   (   0.25,-135.10) (   0.31,-134.77)   37.82                80
 07/30/2015   23:03:39   (   0.25,-135.09) (   0.95,-132.05)  347.51                80
 08/02/2015   11:23:01   (  -0.26,-135.04) (   0.25,-137.32)  260.19                80
 08/03/2015   11:14:28   (  -0.26,-135.03) (  -0.38,-134.60)   49.13                80