Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 7 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/11/2022   22:15:07   (   0.22,-128.43) (  -0.72,-132.67)  483.04                80
 07/12/2022   21:59:02   (   0.21,-128.41) (   0.25,-128.13)   32.15                80
 07/15/2022   09:59:28   (  -0.22,-128.39) (  -0.10,-128.88)   56.18                80
 07/16/2022   09:43:25   (  -0.21,-128.37) (  -1.13,-124.35)  458.56                80
 07/17/2022   22:02:43   (   0.24,-128.34) (  -0.03,-129.67)  150.80                80
 07/18/2022   21:46:39   (   0.22,-128.33) (   0.94,-125.13)  364.32                80
 07/20/2022   10:05:48   (  -0.26,-128.32) (   0.23,-130.41)  238.39                80
 07/21/2022   09:49:44   (  -0.24,-128.30) (  -0.80,-125.88)  276.13                80
 07/22/2022   22:09:02   (   0.28,-128.26) (  -0.41,-131.19)  334.55                80
 07/23/2022   21:52:58   (   0.27,-128.24) (   0.62,-126.66)  179.88                80
 07/25/2022   10:12:07   (  -0.30,-128.23) (   0.54,-131.94)  423.23                80