Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/09/2022   10:06:03   (  -0.05,-128.30) (   0.42,-130.41)  240.45                80
 01/10/2022   09:49:56   (  -0.04,-128.31) (  -0.56,-125.87)  278.17                80
 01/11/2022   22:09:11   (   0.05,-128.33) (  -0.57,-131.18)  323.64                80
 01/12/2022   21:53:05   (   0.04,-128.34) (   0.42,-126.63)  194.73                80
 01/14/2022   10:12:10   (  -0.05,-128.36) (   0.76,-131.89)  403.46                80
 01/15/2022   09:56:05   (  -0.04,-128.36) (  -0.28,-127.36)  114.47                80
 01/16/2022   22:15:19   (   0.04,-128.37) (  -0.90,-132.66)  488.53                80
 01/17/2022   21:59:13   (   0.03,-128.38) (   0.09,-128.12)   29.08                80
 01/20/2022   09:59:32   (  -0.03,-128.39) (   0.05,-128.85)   52.78                80
 01/21/2022   09:43:26   (  -0.03,-128.39) (  -0.94,-124.31)  464.42                80