Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 1 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/07/2019   08:11:46   (  -0.01,-104.29) (  -0.52,-102.11)  248.53                80
 01/08/2019   20:33:41   (   0.02,-104.06) (  -0.70,-107.41)  380.99                80
 01/09/2019   20:17:36   (   0.02,-104.07) (   0.28,-102.87)  136.04                80
 01/11/2019   08:39:24   (  -0.03,-104.31) (   0.85,-108.15)  438.59                80
 01/12/2019   08:17:59   (  -0.02,-104.31) (  -0.19,-103.62)   78.07                80
 01/14/2019   20:21:09   (   0.03,-104.08) (  -0.04,-104.38)   34.95                80
 01/15/2019   20:05:05   (   0.02,-104.08) (   1.00, -99.86)  482.04                80
 01/17/2019   08:26:53   (  -0.02,-104.32) (   0.13,-105.14)   92.47                80
 01/18/2019   08:05:28   (  -0.02,-104.32) (  -0.85,-100.60)  423.98                80
 01/19/2019   20:27:22   (   0.02,-104.07) (  -0.42,-105.88)  206.79                80