Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 10 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/21/2018   20:17:39   (  -0.21,-104.07) (   0.11,-102.74)  152.07                80
 10/23/2018   08:39:28   (   0.18,-104.12) (   1.02,-108.03)  444.09                80
 10/24/2018   08:18:02   (   0.20,-104.11) (   0.05,-103.49)   71.42                80
 10/26/2018   20:21:13   (  -0.19,-104.05) (  -0.24,-104.26)   23.75                80
 10/27/2018   20:05:09   (  -0.20,-104.06) (   0.80, -99.74)  493.20                80
 10/29/2018   08:26:56   (   0.17,-104.11) (   0.38,-105.01)  102.40                80
 10/30/2018   08:05:30   (   0.18,-104.09) (  -0.60,-100.47)  412.59                80
 10/31/2018   20:27:27   (  -0.15,-104.01) (  -0.57,-105.78)  201.87                80
 11/01/2018   20:11:22   (  -0.16,-104.01) (   0.47,-101.25)  314.89                80
 11/03/2018   08:33:11   (   0.13,-104.10) (   0.65,-106.54)  277.44                80