Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 4 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/28/2022   22:02:15   (  -0.12,-128.21) (  -0.39,-129.53)  149.26                80
 04/29/2022   21:46:09   (  -0.13,-128.20) (   0.61,-124.99)  365.69                80
 05/01/2022   10:05:16   (   0.12,-128.14) (   0.58,-130.25)  240.56                80
 05/02/2022   09:49:10   (   0.12,-128.12) (  -0.42,-125.72)  273.75                80
 05/03/2022   22:08:26   (  -0.11,-128.10) (  -0.77,-131.02)  332.32                80
 05/04/2022   21:52:20   (  -0.12,-128.08) (   0.24,-126.48)  181.95                80
 05/06/2022   10:11:26   (   0.10,-128.02) (   0.94,-131.74)  424.77                80
 05/07/2022   09:55:21   (   0.11,-127.99) (  -0.07,-127.21)   88.98                80
 05/09/2022   21:58:31   (  -0.11,-127.93) (  -0.09,-127.97)    5.47                80