Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/06/2022   22:03:03   (   0.05,-128.26) (  -0.28,-129.68)  161.68                80
 01/07/2022   21:46:57   (   0.04,-128.28) (   0.77,-125.15)  357.22                80
 01/09/2022   10:06:03   (  -0.05,-128.30) (   0.42,-130.41)  240.10                80
 01/10/2022   09:49:56   (  -0.04,-128.32) (  -0.56,-125.87)  278.65                80
 01/11/2022   22:09:11   (   0.05,-128.34) (  -0.57,-131.18)  322.94                80
 01/12/2022   21:53:05   (   0.04,-128.35) (   0.42,-126.63)  195.55                80
 01/14/2022   10:12:10   (  -0.05,-128.37) (   0.76,-131.89)  402.51                80
 01/15/2022   09:56:05   (  -0.04,-128.38) (  -0.28,-127.37)  115.56                80
 01/16/2022   22:15:19   (   0.04,-128.38) (  -0.90,-132.66)  487.17                80
 01/17/2022   21:59:13   (   0.03,-128.39) (   0.09,-128.12)   30.56                80