Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 6 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/12/2012   22:32:19   (   0.13,-135.13) (  -0.42,-137.48)  268.59                80
 06/13/2012   22:16:13   (   0.12,-135.10) (   0.62,-132.95)  245.77                80
 06/15/2012   10:35:19   (  -0.15,-135.06) (   0.58,-138.21)  359.83                80
 06/16/2012   10:19:13   (  -0.14,-135.03) (  -0.46,-133.68)  153.86                80
 06/17/2012   22:38:27   (   0.17,-134.98) (  -0.74,-138.98)  455.95                80
 06/18/2012   22:22:21   (   0.16,-134.95) (   0.25,-134.43)   57.62                80
 06/21/2012   10:22:41   (  -0.17,-134.85) (  -0.09,-135.16)   35.75                80
 06/22/2012   10:06:34   (  -0.16,-134.81) (  -1.08,-130.62)  477.11                80
 06/23/2012   22:25:49   (   0.19,-134.75) (  -0.09,-135.92)  134.00                80
 06/24/2012   22:09:42   (   0.18,-134.71) (   0.90,-131.38)  378.83                80
 06/26/2012   10:28:48   (  -0.20,-134.65) (   0.24,-136.65)  228.49                80