Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 10 25.  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   10:12:44   (   0.19,-128.36) (   1.00,-131.98)  412.07                80
 10/27/2021   09:56:40   (   0.20,-128.37) (   0.00,-127.45)  105.25                80
 10/28/2021   22:15:59   (  -0.17,-128.38) (  -1.13,-132.77)  499.74                80
 10/29/2021   21:59:56   (  -0.18,-128.39) (  -0.14,-128.24)   17.47                80
 11/01/2021   10:00:23   (   0.17,-128.41) (   0.31,-128.99)   65.62                80
 11/02/2021   09:44:19   (   0.18,-128.42) (  -0.69,-124.46)  451.23                80
 11/03/2021   22:03:39   (  -0.15,-128.42) (  -0.43,-129.78)  154.67                80
 11/04/2021   21:47:35   (  -0.17,-128.42) (   0.57,-125.25)  361.90                80
 11/06/2021   10:06:45   (   0.14,-128.42) (   0.60,-130.53)  239.38                80
 11/07/2021   09:50:42   (   0.15,-128.42) (  -0.40,-126.00)  276.48                80