Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 10 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/25/2015   10:33:27   (   0.14,-134.78) (   0.56,-136.64)  212.15                80
 10/26/2015   10:17:21   (   0.16,-134.82) (  -0.44,-132.11)  308.96                80
 10/27/2015   22:36:37   (  -0.13,-134.87) (  -0.70,-137.43)  291.37                80
 10/28/2015   22:20:32   (  -0.15,-134.91) (   0.31,-132.90)  229.67                80
 10/30/2015   10:39:39   (   0.12,-134.98) (   0.81,-138.18)  363.82                80
 10/31/2015   10:23:34   (   0.13,-135.02) (  -0.20,-133.65)  156.60                80
 11/01/2015   22:42:49   (  -0.10,-135.05) (  -0.99,-138.95)  445.31                80
 11/02/2015   22:26:44   (  -0.11,-135.08) (   0.02,-134.42)   75.19                80
 11/05/2015   10:29:45   (   0.10,-135.18) (   0.09,-135.17)    1.63                80
 11/07/2015   22:30:15   (  -0.08,-135.24) (  -0.25,-135.95)   81.20                80