Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 8 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/24/2020   10:39:48   (   0.04,-137.19) (   0.29,-138.28)  125.41                80
 08/25/2020   10:18:24   (   0.04,-137.20) (  -0.70,-133.75)  392.15                80
 08/26/2020   22:43:01   (  -0.03,-137.20) (  -0.47,-139.06)  211.92                80
 08/27/2020   22:21:38   (  -0.03,-137.21) (   0.59,-134.54)  305.21                80
 08/29/2020   10:43:26   (   0.02,-137.23) (   0.59,-139.81)  293.54                80
 08/30/2020   10:27:22   (   0.01,-137.24) (  -0.41,-135.28)  223.08                80
 08/31/2020   22:46:39   (   0.00,-137.24) (  -0.76,-140.58)  381.90                80
 09/01/2020   22:30:34   (   0.00,-137.24) (   0.24,-136.05)  135.02                80
 09/03/2020   10:49:43   (  -0.00,-137.26) (   0.94,-141.32)  463.96                80
 09/04/2020   10:33:39   (  -0.00,-137.26) (  -0.12,-136.80)   52.78                80
 09/06/2020   22:34:11   (  -0.00,-137.25) (  -0.10,-137.56)   36.32                80