Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 11 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/25/2021   10:51:13   (   0.00,-137.21) (   0.97,-141.55)  494.74                80
 11/26/2021   10:35:07   (   0.01,-137.20) (  -0.05,-137.02)   21.64                80
 11/28/2021   22:35:36   (  -0.00,-137.19) (  -0.14,-137.78)   67.42                80
 11/29/2021   22:19:30   (  -0.01,-137.18) (   0.89,-133.25)  448.58                80
 12/01/2021   10:38:37   (   0.00,-137.17) (   0.29,-138.52)  153.00                80
 12/02/2021   10:22:30   (   0.01,-137.16) (  -0.68,-133.97)  362.43                80
 12/03/2021   22:41:46   (  -0.01,-137.13) (  -0.47,-139.28)  244.51                80
 12/04/2021   22:25:39   (  -0.01,-137.11) (   0.50,-134.74)  270.33                80
 12/06/2021   10:47:25   (   0.00,-137.08) (   0.67,-140.00)  332.90                80
 12/07/2021   10:26:00   (   0.00,-137.06) (  -0.36,-135.47)  181.37                80
 12/08/2021   22:47:54   (   0.00,-137.02) (  -0.84,-140.77)  426.94                80