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) (   0.53,-136.65)  212.29                80
 10/26/2015   10:17:22   (   0.16,-134.82) (  -0.47,-132.12)  308.83                80
 10/27/2015   22:36:37   (  -0.13,-134.87) (  -0.73,-137.42)  291.60                80
 10/28/2015   22:20:31   (  -0.14,-134.91) (   0.28,-132.89)  229.45                80
 10/30/2015   10:39:39   (   0.12,-134.98) (   0.84,-138.17)  364.05                80
 10/31/2015   10:23:33   (   0.13,-135.01) (  -0.17,-133.64)  156.31                80
 11/01/2015   22:42:50   (  -0.10,-135.05) (  -0.96,-138.96)  445.64                80
 11/02/2015   22:26:44   (  -0.11,-135.08) (   0.05,-134.43)   74.82                80
 11/05/2015   10:27:05   (   0.10,-135.18) (   0.12,-135.16)    2.74                80
 11/07/2015   22:30:16   (  -0.08,-135.23) (  -0.22,-135.95)   81.71                80