Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 1 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2022   10:34:08   (  -0.03,-137.19) (  -0.11,-136.85)   38.54                80
 01/15/2022   22:34:36   (   0.02,-137.15) (  -0.09,-137.61)   51.77                80
 01/16/2022   22:18:30   (   0.01,-137.14) (   0.90,-133.07)  463.89                80
 01/18/2022   10:37:35   (  -0.01,-137.12) (   0.28,-138.32)  137.54                80
 01/19/2022   10:21:30   (  -0.00,-137.10) (  -0.77,-133.80)  377.66                80
 01/20/2022   22:40:44   (   0.02,-137.07) (  -0.41,-139.09)  230.47                80
 01/21/2022   22:24:37   (   0.02,-137.05) (   0.58,-134.55)  284.50                80
 01/23/2022   10:46:23   (  -0.02,-137.03) (   0.61,-139.81)  317.76                80
 01/24/2022   10:24:56   (  -0.02,-137.00) (  -0.39,-135.27)  196.66                80
 01/25/2022   22:46:50   (   0.02,-136.95) (  -0.79,-140.57)  412.23                80