Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 7 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/09/2020   10:01:24   (   0.03,-128.31) (   0.11,-128.76)   50.94                80
 07/10/2020   09:40:00   (   0.02,-128.33) (  -0.87,-124.23)  466.77                80
 07/11/2020   22:01:57   (  -0.03,-128.30) (  -0.31,-129.53)  141.19                80
 07/12/2020   21:45:54   (  -0.02,-128.31) (   0.73,-125.01)  376.61                80
 07/14/2020   10:07:42   (   0.03,-128.39) (   0.47,-130.28)  215.85                80
 07/15/2020   09:46:18   (   0.02,-128.40) (  -0.58,-125.76)  301.24                80
 07/16/2020   22:08:16   (  -0.02,-128.35) (  -0.61,-131.06)  308.48                80
 07/17/2020   21:52:11   (  -0.01,-128.36) (   0.38,-126.53)  208.37                80
 07/19/2020   10:14:01   (   0.00,-128.43) (   0.76,-131.81)  385.28                80
 07/20/2020   09:52:37   (  -0.01,-128.43) (  -0.29,-127.29)  130.88                80