Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 2 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/26/2021   10:51:52   (  -0.04,-137.20) (   0.87,-141.35)  472.04                80
 02/27/2021   10:30:26   (  -0.04,-137.20) (  -0.10,-136.81)   44.01                80
 03/01/2021   22:33:38   (   0.04,-137.18) (  -0.03,-137.59)   45.94                80
 03/02/2021   22:17:32   (   0.04,-137.17) (   0.94,-133.05)  469.64                80
 03/04/2021   10:39:21   (  -0.04,-137.16) (   0.20,-138.32)  132.45                80
 03/05/2021   10:17:55   (  -0.03,-137.14) (  -0.78,-133.78)  382.48                80
 03/06/2021   22:39:52   (   0.03,-137.11) (  -0.38,-139.09)  224.81                80
 03/07/2021   22:23:46   (   0.02,-137.09) (   0.59,-134.55)  289.88                80
 03/09/2021   10:45:33   (  -0.01,-137.07) (   0.61,-139.82)  312.99                80
 03/10/2021   10:24:09   (  -0.01,-137.05) (  -0.43,-135.29)  201.43                80
 03/11/2021   22:46:04   (   0.00,-137.01) (  -0.79,-140.58)  406.64                80