Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2013 3 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)
 03/21/2013   10:22:02   (   0.01,-135.32) (  -0.79,-131.84)  396.61                80
 03/23/2013   22:48:06   (  -0.02,-135.24) (  -0.51,-137.48)  255.11                80
 03/24/2013   22:34:40   (  -0.02,-135.21) (   0.04,-134.87)   39.10                80
 03/25/2013   22:23:56   (  -0.02,-135.19) (   0.64,-132.27)  333.00                80
 03/28/2013   10:47:20   (   0.02,-135.16) (   0.63,-137.91)  313.67                80
 03/29/2013   10:36:35   (   0.01,-135.13) (   0.04,-135.31)   20.58                80
 03/30/2013   10:28:30   (   0.01,-135.09) (  -0.50,-132.70)  272.52                80
 04/01/2013   22:51:53   (  -0.01,-134.98) (  -0.76,-138.33)  382.66                80
 04/02/2013   22:41:07   (  -0.01,-134.94) (  -0.21,-135.73)   90.25                80