Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 1 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)
 01/15/2019   20:05:04   (   0.02,-104.08) (   0.97, -99.85)  482.34                80
 01/17/2019   08:26:53   (  -0.02,-104.33) (   0.16,-105.13)   91.79                80
 01/18/2019   08:05:28   (  -0.02,-104.32) (  -0.88,-100.60)  424.74                80
 01/19/2019   20:27:22   (   0.02,-104.08) (  -0.39,-105.89)  205.96                80
 01/20/2019   20:11:17   (   0.01,-104.08) (   0.59,-101.35)  310.76                80
 01/22/2019   08:33:05   (  -0.01,-104.33) (   0.53,-106.63)  263.26                80
 01/23/2019   08:11:41   (  -0.01,-104.33) (  -0.51,-102.10)  253.23                80
 01/24/2019   20:33:35   (   0.01,-104.08) (  -0.75,-107.39)  377.80                80
 01/25/2019   20:17:31   (   0.01,-104.08) (   0.29,-102.86)  139.01                80
 01/27/2019   08:36:39   (  -0.02,-104.34) (   0.84,-108.14)  434.20                80
 01/28/2019   08:20:34   (  -0.01,-104.34) (  -0.20,-103.62)   82.78                80