Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 1 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/15/2022   22:34:36   (   0.03,-137.22) (  -0.07,-137.61)   44.87                80
 01/16/2022   22:18:31   (   0.03,-137.25) (   0.98,-133.08)  475.14                80
 01/18/2022   10:40:16   (  -0.03,-137.29) (   0.21,-138.34)  119.81                80
 01/19/2022   10:18:50   (  -0.02,-137.31) (  -0.78,-133.80)  399.60                80
 01/20/2022   22:40:45   (   0.03,-137.34) (  -0.34,-139.11)  201.43                80
 01/21/2022   22:24:39   (   0.03,-137.36) (   0.65,-134.57)  317.85                80
 01/23/2022   10:46:24   (  -0.03,-137.40) (   0.53,-139.83)  277.80                80
 01/24/2022   10:24:58   (  -0.03,-137.41) (  -0.52,-135.30)  241.00                80
 01/25/2022   22:46:52   (   0.03,-137.43) (  -0.71,-140.59)  361.18                80
 01/26/2022   22:30:46   (   0.02,-137.44) (   0.34,-136.06)  157.24                80
 01/28/2022   10:52:31   (   0.00,-137.46) (   0.84,-141.32)  439.34                80