Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/10/2015   10:38:03   (  -0.10,-135.03) (   0.31,-136.76)  197.37                80
 01/11/2015   10:21:57   (  -0.10,-135.00) (  -0.71,-132.22)  316.34                80
 01/12/2015   22:41:10   (   0.10,-134.91) (  -0.49,-137.52)  298.10                80
 01/13/2015   22:25:04   (   0.10,-134.88) (   0.53,-132.99)  215.40                80
 01/15/2015   10:44:08   (  -0.10,-134.87) (   0.66,-138.25)  385.41                80
 01/16/2015   10:28:02   (  -0.09,-134.83) (  -0.37,-133.72)  127.45                80
 01/17/2015   22:47:14   (   0.10,-134.72) (  -0.88,-139.00)  488.77                80
 01/18/2015   22:31:07   (   0.09,-134.68) (   0.15,-134.47)   23.74                80
 01/21/2015   10:31:24   (  -0.09,-134.61) (   0.06,-135.19)   66.26                80
 01/22/2015   10:15:18   (  -0.09,-134.56) (  -0.97,-130.66)  445.58                80