Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 4 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)
 04/19/2023   08:07:33   (   0.00,-104.73) (  -0.93,-100.47)  484.52                80
 04/20/2023   20:29:28   (  -0.00,-104.74) (  -0.23,-105.78)  118.17                80
 04/21/2023   20:13:23   (  -0.00,-104.75) (   0.79,-101.25)  399.35                80
 04/23/2023   08:35:08   (   0.00,-104.76) (   0.42,-106.51)  200.07                80
 04/24/2023   08:13:43   (  -0.00,-104.76) (  -0.61,-101.98)  317.10                80
 04/25/2023   20:35:38   (   0.00,-104.77) (  -0.54,-107.29)  286.15                80
 04/26/2023   20:19:32   (   0.00,-104.78) (   0.44,-102.75)  231.42                80
 04/28/2023   08:41:18   (   0.01,-104.80) (   0.70,-108.02)  367.05                80
 04/29/2023   08:19:51   (   0.01,-104.80) (  -0.28,-103.48)  150.51                80
 04/30/2023   20:41:46   (  -0.02,-104.81) (  -0.91,-108.78)  452.51                80
 05/01/2023   20:25:40   (  -0.02,-104.82) (   0.14,-104.25)   65.42                80