Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/01/2020   20:20:28   (   0.01,-104.04) (  -0.05,-104.24)   23.57                80
 01/02/2020   20:04:23   (   0.00,-104.04) (   0.96, -99.71)  493.71                80
 01/04/2020   08:26:11   (  -0.01,-104.31) (   0.12,-105.00)   78.42                80
 01/05/2020   08:04:46   (  -0.01,-104.30) (  -0.89,-100.46)  438.27                80
 01/06/2020   20:26:40   (   0.01,-104.04) (  -0.35,-105.75)  194.30                80
 01/07/2020   20:10:35   (   0.01,-104.04) (   0.66,-101.22)  322.74                80
 01/09/2020   08:32:22   (  -0.01,-104.31) (   0.47,-106.49)  248.88                80
 01/10/2020   08:10:56   (  -0.00,-104.30) (  -0.53,-101.96)  267.52                80
 01/11/2020   20:32:51   (   0.00,-104.03) (  -0.70,-107.25)  366.20                80
 01/12/2020   20:16:45   (   0.00,-104.03) (   0.32,-102.71)  150.43                80