Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 4 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/12/2022   22:02:23   (  -0.13,-128.40) (  -0.41,-129.56)  132.58                80
 04/13/2022   21:46:19   (  -0.13,-128.40) (   0.64,-125.04)  383.72                80
 04/15/2022   10:08:05   (   0.13,-128.38) (   0.58,-130.29)  219.23                80
 04/16/2022   09:46:41   (   0.13,-128.37) (  -0.47,-125.77)  296.52                80
 04/17/2022   22:08:36   (  -0.12,-128.37) (  -0.74,-131.06)  307.97                80
 04/18/2022   21:52:31   (  -0.13,-128.35) (   0.31,-126.54)  207.49                80
 04/20/2022   10:14:18   (   0.12,-128.32) (   0.91,-131.80)  396.63                80
 04/21/2022   09:52:52   (   0.13,-128.30) (  -0.08,-127.26)  118.13                80
 04/22/2022   22:14:49   (  -0.12,-128.28) (  -1.06,-132.57)  488.30                80
 04/23/2022   21:58:43   (  -0.13,-128.26) (  -0.07,-128.03)   26.50                80