Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/04/2020   10:14:09   (  -0.01,-128.36) (   0.77,-131.82)  394.58                80
 08/05/2020   09:52:44   (  -0.01,-128.35) (  -0.22,-127.28)  120.43                80
 08/06/2020   22:14:41   (   0.00,-128.27) (  -0.97,-132.59)  492.34                80
 08/07/2020   21:58:37   (   0.00,-128.26) (   0.03,-128.06)   22.79                80
 08/10/2020   10:01:42   (   0.00,-128.28) (   0.10,-128.80)   59.55                80
 08/11/2020   09:40:17   (   0.00,-128.26) (  -0.89,-124.27)  454.89                80
 08/12/2020   22:02:15   (   0.00,-128.18) (  -0.29,-129.58)  159.20                80
 08/13/2020   21:46:10   (   0.00,-128.16) (   0.71,-125.04)  354.87                80
 08/15/2020   10:05:18   (  -0.01,-128.18) (   0.47,-130.31)  243.47                80
 08/16/2020   09:49:14   (  -0.01,-128.15) (  -0.52,-125.78)  270.06                80
 08/17/2020   22:08:31   (   0.01,-128.05) (  -0.66,-131.09)  345.45                80