Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 7 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2022   22:28:13   (  -0.05,-137.29) (   0.22,-136.08)  137.94                80
 07/23/2022   10:52:43   (   0.05,-137.28) (   0.94,-141.36)  464.49                80
 07/24/2022   10:31:18   (   0.04,-137.27) (  -0.04,-136.82)   50.57                80
 07/26/2022   22:37:12   (  -0.04,-137.25) (  -0.14,-137.60)   41.20                80
 07/27/2022   22:15:49   (  -0.03,-137.23) (   0.90,-133.08)  473.46                80
 07/29/2022   10:40:17   (   0.03,-137.21) (   0.32,-138.34)  130.25                80
 07/30/2022   10:18:53   (   0.03,-137.19) (  -0.72,-133.82)  384.20                80
 07/31/2022   22:40:51   (  -0.04,-137.17) (  -0.48,-139.13)  223.09                80
 08/01/2022   22:24:47   (  -0.04,-137.15) (   0.56,-134.60)  291.11                80
 08/03/2022   10:43:56   (   0.03,-137.12) (   0.66,-139.87)  313.44                80
 08/04/2022   10:27:52   (   0.03,-137.10) (  -0.38,-135.35)  200.29                80