Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2020 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2020   20:20:24   (   0.06,-104.10) (   0.04,-104.25)   17.28                80
 12/19/2020   20:04:19   (   0.05,-104.10) (   1.05, -99.72)  499.52                80
 12/21/2020   08:26:09   (  -0.07,-104.37) (   0.05,-105.01)   72.29                80
 12/22/2020   08:04:44   (  -0.06,-104.37) (  -0.96,-100.48)  443.94                80
 12/23/2020   20:26:39   (   0.07,-104.10) (  -0.32,-105.77)  190.73                80
 12/24/2020   20:10:35   (   0.06,-104.10) (   0.69,-101.24)  326.27                80
 12/26/2020   08:32:24   (  -0.07,-104.39) (   0.41,-106.53)  243.94                80
 12/27/2020   08:11:00   (  -0.06,-104.38) (  -0.60,-102.00)  272.34                80
 12/28/2020   20:32:55   (   0.07,-104.10) (  -0.67,-107.28)  363.60                80
 12/29/2020   20:16:51   (   0.06,-104.10) (   0.34,-102.75)  153.04                80
 12/31/2020   08:38:40   (  -0.07,-104.39) (   0.75,-108.04)  416.73                80