Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 5 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/14/2023   08:41:01   (   0.00,-104.72) (   0.73,-107.99)  372.61                80
 05/15/2023   08:19:35   (   0.00,-104.72) (  -0.27,-103.46)  144.00                80
 05/16/2023   20:41:30   (  -0.00,-104.73) (  -0.93,-108.76)  459.99                80
 05/17/2023   20:25:26   (  -0.00,-104.74) (   0.13,-104.24)   57.10                80
 05/20/2023   08:28:27   (   0.00,-104.75) (   0.07,-104.97)   26.06                80
 05/21/2023   08:07:01   (  -0.00,-104.75) (  -0.94,-100.44)  490.52                80
 05/22/2023   20:28:57   (   0.01,-104.75) (  -0.24,-105.74)  113.95                80
 05/23/2023   20:12:52   (   0.01,-104.75) (   0.83,-101.22)  402.96                80
 05/25/2023   08:34:38   (  -0.02,-104.77) (   0.37,-106.49)  196.45                80
 05/26/2023   08:13:13   (  -0.01,-104.77) (  -0.64,-101.96)  320.46                80