Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 2 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/24/2020   21:52:07   (   0.36,-128.46) (   0.74,-126.64)  206.73                80
 02/26/2020   10:13:55   (  -0.36,-128.44) (   0.44,-131.91)  396.15                80
 02/27/2020   09:54:53   (  -0.36,-128.44) (  -0.62,-127.39)  120.38                61
 02/28/2020   22:14:28   (   0.36,-128.46) (  -0.59,-132.69)  481.94                80
 02/29/2020   21:58:23   (   0.36,-128.46) (   0.41,-128.16)   34.34                80
 03/03/2020   10:01:27   (  -0.35,-128.43) (  -0.24,-128.90)   53.60                80
 03/04/2020   09:40:03   (  -0.35,-128.42) (  -1.25,-124.37)  461.81                80
 03/05/2020   22:01:59   (   0.34,-128.43) (   0.04,-129.67)  142.16                80
 03/06/2020   21:45:55   (   0.34,-128.42) (   1.05,-125.14)  373.04                80
 03/08/2020   10:07:43   (  -0.34,-128.38) (   0.13,-130.41)  231.73                80
 03/09/2020   09:46:18   (  -0.34,-128.36) (  -0.88,-125.88)  282.97                80