Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 4 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2022   10:14:18   (   0.12,-128.33) (   0.88,-131.80)  395.23                80
 04/21/2022   09:52:53   (   0.12,-128.32) (  -0.12,-127.27)  119.85                80
 04/22/2022   22:14:48   (  -0.12,-128.31) (  -1.09,-132.56)  484.53                80
 04/23/2022   21:58:43   (  -0.13,-128.30) (  -0.09,-128.02)   30.81                80
 04/26/2022   10:01:44   (   0.13,-128.24) (   0.24,-128.76)   59.41                80
 04/27/2022   09:40:19   (   0.14,-128.22) (  -0.76,-124.22)  455.56                80
 04/28/2022   22:02:14   (  -0.12,-128.22) (  -0.44,-129.52)  149.26                80
 04/29/2022   21:46:09   (  -0.13,-128.20) (   0.56,-124.98)  365.86                80
 05/01/2022   10:05:16   (   0.12,-128.15) (   0.58,-130.26)  239.54                80
 05/02/2022   09:49:11   (   0.12,-128.13) (  -0.42,-125.72)  274.91                80
 05/03/2022   22:08:26   (  -0.11,-128.11) (  -0.76,-131.02)  331.55                80