Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 8 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/04/2018   08:36:30   (  -0.31,-104.47) (   0.47,-108.05)  408.13                80
 08/05/2018   08:20:25   (  -0.30,-104.47) (  -0.51,-103.52)  108.75                80
 08/06/2018   20:39:44   (   0.33,-104.63) (  -0.63,-108.83)  479.47                80
 08/07/2018   20:23:40   (   0.32,-104.64) (   0.41,-104.31)   37.63                80
 08/10/2018   08:24:04   (  -0.34,-104.50) (  -0.19,-105.04)   62.67                80
 08/11/2018   08:08:01   (  -0.33,-104.50) (  -1.24,-100.52)  453.96                80
 08/12/2018   20:27:19   (   0.35,-104.65) (   0.10,-105.84)  134.57                80
 08/13/2018   20:11:14   (   0.34,-104.66) (   1.08,-101.30)  382.80                80
 08/15/2018   08:33:03   (  -0.36,-104.53) (   0.12,-106.57)  232.78                80
 08/16/2018   08:11:39   (  -0.35,-104.53) (  -0.92,-102.04)  284.15                80