Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 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)
 12/20/2022   10:40:47   (  -0.01,-137.33) (   0.23,-138.28)  108.58                80
 12/21/2022   10:19:25   (  -0.01,-137.32) (  -0.83,-133.76)  406.80                80
 12/22/2022   22:41:22   (   0.00,-137.31) (  -0.42,-139.05)  199.96                80
 12/23/2022   22:25:18   (  -0.00,-137.29) (   0.59,-134.53)  314.92                80
 12/25/2022   10:47:08   (   0.01,-137.28) (   0.60,-139.79)  287.81                80
 12/26/2022   10:25:44   (   0.01,-137.26) (  -0.41,-135.27)  226.76                80
 12/27/2022   22:47:43   (  -0.02,-137.23) (  -0.77,-140.57)  380.95                80
 12/28/2022   22:31:39   (  -0.01,-137.22) (   0.24,-136.05)  133.51                80
 12/30/2022   10:53:28   (   0.02,-137.20) (   0.95,-141.32)  469.49                80
 12/31/2022   10:32:05   (   0.02,-137.18) (  -0.07,-136.79)   44.72                80