Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 5 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/25/2020   21:43:11   (   0.05,-128.21) (   0.77,-125.05)  360.20                80
 05/27/2020   10:07:38   (  -0.03,-128.20) (   0.42,-130.32)  240.70                80
 05/28/2020   09:46:13   (  -0.04,-128.18) (  -0.56,-125.78)  273.46                80
 05/29/2020   22:10:48   (   0.02,-128.13) (  -0.67,-131.07)  335.03                80
 05/30/2020   21:49:24   (   0.03,-128.12) (   0.37,-126.54)  179.36                80
 06/01/2020   10:13:51   (  -0.00,-128.10) (   0.82,-131.80)  421.64                80
 06/02/2020   09:52:27   (  -0.02,-128.08) (  -0.22,-127.28)   92.05                80
 06/04/2020   21:58:17   (   0.01,-128.00) (  -0.02,-128.03)    5.11                80
 06/07/2020   10:01:19   (  -0.01,-127.95) (   0.17,-128.77)   92.74                80
 06/08/2020   09:39:55   (  -0.02,-127.92) (  -0.87,-124.24)  420.25                80