Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 8 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)
 08/31/2021   20:21:25   (  -0.41,-104.33) (  -0.40,-104.33)    0.93                80
 09/03/2021   08:27:09   (   0.40,-104.17) (   0.58,-105.07)  102.53                80
 09/04/2021   08:05:44   (   0.39,-104.15) (  -0.42,-100.54)  411.97                80
 09/05/2021   20:27:42   (  -0.39,-104.29) (  -0.76,-105.84)  177.58                80
 09/06/2021   20:11:38   (  -0.39,-104.30) (   0.30,-101.32)  339.28                80
 09/08/2021   08:33:25   (   0.39,-104.17) (   0.94,-106.58)  275.34                80
 09/09/2021   08:12:01   (   0.39,-104.15) (  -0.06,-102.05)  239.36                80
 09/10/2021   20:33:58   (  -0.39,-104.26) (  -1.11,-107.36)  353.96                80
 09/11/2021   20:17:55   (  -0.39,-104.26) (  -0.05,-102.84)  162.88                80
 09/13/2021   08:39:42   (   0.38,-104.16) (   1.28,-108.09)  448.52                80