Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 9 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/16/2018   08:33:08   (   0.34,-104.13) (   0.86,-106.43)  261.70                80
 09/17/2018   08:11:44   (   0.35,-104.11) (  -0.13,-101.89)  252.55                80
 09/18/2018   20:33:41   (  -0.33,-104.18) (  -1.03,-107.20)  344.75                80
 09/19/2018   20:17:38   (  -0.34,-104.18) (   0.02,-102.68)  171.15                80
 09/21/2018   08:39:26   (   0.32,-104.09) (   1.18,-107.95)  439.35                80
 09/22/2018   08:18:02   (   0.32,-104.07) (   0.18,-103.41)   75.04                80
 09/24/2018   20:21:14   (  -0.31,-104.12) (  -0.34,-104.19)    8.65                80
 09/27/2018   08:26:59   (   0.31,-104.04) (   0.49,-104.93)  101.55                80
 09/28/2018   08:05:35   (   0.32,-104.02) (  -0.51,-100.40)  412.94                80