Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 2 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/28/2020   22:14:28   (   0.36,-128.46) (  -0.58,-132.69)  482.01                80
 02/29/2020   21:58:24   (   0.36,-128.46) (   0.42,-128.16)   34.27                80
 03/03/2020   10:01:27   (  -0.35,-128.43) (  -0.26,-128.90)   53.42                80
 03/04/2020   09:40:03   (  -0.35,-128.42) (  -1.26,-124.37)  461.99                80
 03/05/2020   22:01:59   (   0.35,-128.43) (   0.05,-129.67)  142.12                80
 03/06/2020   21:45:55   (   0.34,-128.42) (   1.06,-125.14)  373.08                80
 03/08/2020   10:07:43   (  -0.34,-128.38) (   0.11,-130.41)  231.42                80
 03/09/2020   09:46:19   (  -0.34,-128.37) (  -0.90,-125.88)  283.30                80
 03/10/2020   22:08:15   (   0.33,-128.36) (  -0.31,-131.18)  321.82                80
 03/11/2020   21:52:10   (   0.34,-128.35) (   0.70,-126.65)  192.90                80
 03/13/2020   10:13:59   (  -0.33,-128.31) (   0.46,-131.92)  411.82                80