Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 4 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)
 04/11/2022   09:40:28   (   0.13,-128.39) (  -0.79,-124.26)  470.46                80
 04/12/2022   22:02:24   (  -0.13,-128.40) (  -0.37,-129.57)  132.75                80
 04/13/2022   21:46:18   (  -0.13,-128.40) (   0.62,-125.03)  383.49                80
 04/15/2022   10:08:06   (   0.13,-128.37) (   0.55,-130.30)  219.34                80
 04/16/2022   09:46:40   (   0.13,-128.37) (  -0.44,-125.76)  296.36                80
 04/17/2022   22:08:36   (  -0.12,-128.36) (  -0.71,-131.07)  308.35                80
 04/18/2022   21:52:31   (  -0.13,-128.35) (   0.28,-126.53)  207.05                80
 04/20/2022   10:14:18   (   0.12,-128.32) (   0.87,-131.80)  396.96                80
 04/21/2022   09:55:33   (   0.13,-128.30) (  -0.12,-127.27)  117.74                80
 04/22/2022   22:14:48   (  -0.12,-128.28) (  -1.08,-132.56)  488.86                80
 04/23/2022   21:58:43   (  -0.13,-128.26) (  -0.09,-128.03)   25.90                80