Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2015 4 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)
 04/22/2015   06:27:42   (   0.02,-135.27) (   0.12,-134.73)   61.16                80
 04/23/2015   18:46:33   (  -0.03,-135.30) (   0.84,-139.30)  455.56                80
 04/24/2015   18:28:33   (  -0.03,-135.32) (  -0.28,-134.31)  116.20                80
 04/26/2015   06:47:31   (   0.03,-135.35) (  -0.75,-138.90)  403.58                80
 04/27/2015   06:24:10   (   0.03,-135.37) (   0.37,-133.90)  167.66                80
 04/28/2015   18:43:01   (  -0.04,-135.39) (   0.64,-138.46)  349.89                80
 04/29/2015   18:25:00   (  -0.03,-135.40) (  -0.49,-133.46)  221.54                80
 05/01/2015   06:43:59   (   0.04,-135.43) (  -0.52,-138.06)  298.48                80
 05/02/2015   06:20:37   (   0.03,-135.44) (   0.55,-133.05)  272.27                80
 05/03/2015   18:39:27   (  -0.04,-135.45) (   0.44,-137.61)  246.66                80
 05/04/2015   18:21:27   (  -0.04,-135.46) (  -0.69,-132.62)  323.94                80