Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/14/2022   10:12:11   (  -0.05,-128.35) (   0.73,-131.90)  404.65                80
 01/15/2022   09:56:04   (  -0.04,-128.35) (  -0.26,-127.36)  112.98                80
 01/16/2022   22:15:19   (   0.04,-128.36) (  -0.92,-132.66)  490.31                80
 01/17/2022   21:59:12   (   0.04,-128.36) (   0.07,-128.12)   27.17                80
 01/20/2022   09:59:32   (  -0.04,-128.36) (   0.07,-128.85)   55.46                80
 01/21/2022   09:43:26   (  -0.03,-128.36) (  -0.92,-124.31)  461.41                80
 01/22/2022   22:02:40   (   0.04,-128.35) (  -0.25,-129.60)  142.85                80
 01/23/2022   21:46:34   (   0.04,-128.35) (   0.80,-125.08)  373.94                80
 01/25/2022   10:08:20   (  -0.04,-128.35) (   0.39,-130.34)  226.42                80
 01/26/2022   09:49:33   (  -0.04,-128.34) (  -0.60,-125.79)  289.83                80
 01/27/2022   22:08:47   (   0.03,-128.32) (  -0.57,-131.09)  315.80                80