Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 1 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/18/2022   10:40:16   (  -0.03,-137.21) (   0.23,-138.33)  127.95                80
 01/19/2022   10:18:50   (  -0.03,-137.22) (  -0.82,-133.81)  389.24                80
 01/20/2022   22:40:45   (   0.03,-137.21) (  -0.37,-139.10)  214.98                80
 01/21/2022   22:24:38   (   0.03,-137.21) (   0.63,-134.56)  302.03                80
 01/23/2022   10:46:23   (  -0.03,-137.22) (   0.55,-139.82)  297.33                80
 01/24/2022   10:24:57   (  -0.03,-137.21) (  -0.44,-135.28)  219.24                80
 01/25/2022   22:46:51   (   0.03,-137.19) (  -0.73,-140.58)  386.07                80
 01/26/2022   22:30:45   (   0.03,-137.19) (   0.26,-136.04)  130.06                80
 01/28/2022   10:52:30   (   0.00,-137.17) (   0.92,-141.30)  470.27                80
 01/29/2022   10:31:04   (   0.02,-137.16) (  -0.07,-136.76)   45.40                80
 01/31/2022   22:34:11   (  -0.01,-137.11) (  -0.09,-137.52)   46.77                80