Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 12 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/01/2022   21:56:54   (   0.04,-128.17) (   0.01,-128.18)    3.38                80
 01/04/2022   09:59:54   (  -0.04,-128.22) (   0.14,-128.91)   79.10                80
 01/05/2022   09:43:48   (  -0.03,-128.24) (  -0.90,-124.38)  439.91                80
 01/06/2022   22:03:03   (   0.05,-128.27) (  -0.29,-129.68)  161.17                80
 01/07/2022   21:46:57   (   0.04,-128.28) (   0.75,-125.15)  357.90                80
 01/09/2022   10:06:02   (  -0.05,-128.31) (   0.44,-130.41)  239.14                80
 01/10/2022   09:49:57   (  -0.05,-128.33) (  -0.61,-125.88)  279.78                80
 01/11/2022   22:09:11   (   0.05,-128.35) (  -0.58,-131.17)  321.62                80
 01/12/2022   21:53:05   (   0.04,-128.37) (   0.41,-126.63)  197.04                80
 01/14/2022   10:12:11   (  -0.05,-128.38) (   0.72,-131.91)  400.77                80