Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2020 1 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/27/2020   20:35:24   (  -0.02,-104.06) (  -0.71,-107.23)  360.51                80
 01/28/2020   20:13:59   (  -0.02,-104.06) (   0.28,-102.69)  155.73                80
 01/30/2020   08:35:49   (   0.02,-104.31) (   0.85,-107.98)  418.12                80
 01/31/2020   08:19:45   (   0.02,-104.31) (  -0.20,-103.46)   98.36                80
 02/02/2020   20:22:57   (  -0.01,-104.07) (  -0.02,-104.22)   17.16                80
 02/03/2020   20:01:33   (  -0.01,-104.07) (   0.98, -99.69)  499.05                80
 02/05/2020   08:23:22   (   0.00,-104.31) (   0.16,-104.97)   75.48                80
 02/06/2020   08:07:17   (   0.00,-104.31) (  -0.84,-100.44)  440.54                80
 02/07/2020   20:29:14   (   0.00,-104.07) (  -0.37,-105.74)  191.11                80
 02/08/2020   20:07:49   (   0.01,-104.06) (   0.63,-101.21)  324.49                80