Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 5 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)
 05/20/2023   08:28:27   (  -0.00,-104.73) (   0.07,-104.97)   27.74                80
 05/21/2023   08:07:02   (  -0.00,-104.73) (  -0.99,-100.45)  488.58                80
 05/22/2023   20:28:58   (   0.01,-104.73) (  -0.20,-105.75)  116.26                80
 05/23/2023   20:12:52   (   0.02,-104.73) (   0.80,-101.22)  400.34                80
 05/25/2023   08:34:38   (  -0.02,-104.74) (   0.40,-106.48)  199.60                80
 05/26/2023   08:13:14   (  -0.02,-104.74) (  -0.67,-101.96)  316.97                80
 05/27/2023   20:35:08   (   0.02,-104.74) (  -0.57,-107.26)  287.80                80
 05/28/2023   20:19:03   (   0.02,-104.74) (   0.44,-102.72)  229.26                80
 05/30/2023   08:40:50   (  -0.03,-104.76) (   0.70,-108.00)  369.75                80
 05/31/2023   08:19:25   (  -0.03,-104.76) (  -0.31,-103.47)  146.94                80