Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2018   20:05:08   (   0.01,-104.06) (   0.93, -99.85)  479.38                80
 01/01/2019   08:26:57   (  -0.02,-104.29) (   0.14,-105.14)   96.72                80
 01/02/2019   08:05:32   (  -0.01,-104.29) (  -0.84,-100.60)  419.97                80
 01/03/2019   20:27:27   (   0.02,-104.06) (  -0.39,-105.90)  208.60                80
 01/04/2019   20:11:22   (   0.01,-104.07) (   0.59,-101.36)  308.83                80
 01/06/2019   08:33:11   (  -0.02,-104.31) (   0.48,-106.65)  265.88                80
 01/07/2019   08:11:46   (  -0.01,-104.31) (  -0.50,-102.11)  250.89                80
 01/08/2019   20:33:41   (   0.02,-104.08) (  -0.71,-107.41)  378.62                80
 01/09/2019   20:17:35   (   0.02,-104.09) (   0.27,-102.87)  138.82                80
 01/11/2019   08:39:25   (  -0.03,-104.34) (   0.80,-108.16)  434.64                80
 01/12/2019   08:17:59   (  -0.02,-104.35) (  -0.18,-103.62)   82.37                80