Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 10 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/26/2021   10:12:43   (   0.19,-128.36) (   1.01,-131.98)  412.08                80
 10/27/2021   09:56:40   (   0.20,-128.37) (   0.01,-127.45)  105.27                80
 10/28/2021   22:15:59   (  -0.17,-128.38) (  -1.15,-132.77)  499.57                80
 10/29/2021   21:59:56   (  -0.18,-128.39) (  -0.15,-128.24)   17.59                80
 11/01/2021   10:00:23   (   0.17,-128.41) (   0.32,-128.98)   65.62                80
 11/02/2021   09:44:19   (   0.18,-128.42) (  -0.68,-124.45)  451.29                80
 11/03/2021   22:03:38   (  -0.15,-128.42) (  -0.45,-129.78)  154.45                80
 11/04/2021   21:47:35   (  -0.17,-128.42) (   0.55,-125.25)  362.11                80
 11/06/2021   10:06:45   (   0.14,-128.42) (   0.61,-130.52)  239.29                80
 11/07/2021   09:50:42   (   0.15,-128.42) (  -0.39,-125.99)  276.58                80
 11/08/2021   22:10:00   (  -0.12,-128.40) (  -0.79,-131.30)  330.94                80