Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 12 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)
 12/29/2019   08:38:45   (  -0.01,-104.30) (   0.80,-108.03)  424.89                80
 12/30/2019   08:17:20   (  -0.00,-104.29) (  -0.21,-103.50)   91.70                80
 01/01/2020   20:20:29   (   0.01,-104.04) (  -0.03,-104.25)   23.16                80
 01/02/2020   20:04:23   (   0.00,-104.05) (   0.97, -99.71)  494.16                80
 01/04/2020   08:26:11   (  -0.01,-104.31) (   0.16,-104.99)   77.83                80
 01/05/2020   08:04:45   (  -0.01,-104.31) (  -0.84,-100.45)  438.98                80
 01/06/2020   20:26:39   (   0.01,-104.05) (  -0.40,-105.74)  193.43                80
 01/07/2020   20:10:34   (   0.01,-104.05) (   0.61,-101.21)  323.73                80
 01/09/2020   08:32:22   (  -0.01,-104.32) (   0.47,-106.50)  247.81                80
 01/10/2020   08:10:57   (  -0.00,-104.32) (  -0.54,-101.96)  268.69                80