Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 6 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2020   22:14:50   (  -0.00,-137.20) (   0.94,-132.97)  482.04                80
 06/21/2020   10:39:17   (  -0.00,-137.20) (   0.24,-138.23)  118.43                80
 06/22/2020   10:17:53   (  -0.01,-137.19) (  -0.80,-133.71)  397.49                80
 06/23/2020   22:42:28   (   0.01,-137.18) (  -0.41,-139.00)  208.09                80
 06/24/2020   22:21:04   (   0.01,-137.17) (   0.63,-134.47)  307.56                80
 06/26/2020   10:45:31   (  -0.01,-137.15) (   0.55,-139.74)  293.98                80
 06/27/2020   10:24:06   (  -0.01,-137.14) (  -0.44,-135.20)  221.43                80
 06/28/2020   22:48:41   (   0.00,-137.12) (  -0.77,-140.49)  385.00                80
 06/29/2020   22:29:56   (   0.00,-137.10) (   0.27,-135.97)  130.01                80
 07/01/2020   10:51:44   (  -0.01,-137.08) (   0.91,-141.23)  472.65                80
 07/02/2020   10:32:58   (  -0.01,-137.06) (  -0.08,-136.69)   41.93                80