Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/20/2020   10:11:35   (  -0.04,-127.90) (   0.81,-131.82)  446.81                80
 08/21/2020   09:55:31   (  -0.04,-127.86) (  -0.19,-127.29)   65.58                80
 08/23/2020   21:56:03   (   0.04,-127.73) (  -0.05,-128.05)   37.61                80
 08/24/2020   21:39:59   (   0.04,-127.69) (   1.00,-123.53)  474.47                80
 08/26/2020   09:59:07   (  -0.05,-127.66) (   0.23,-128.79)  129.15                80
 08/27/2020   09:43:03   (  -0.05,-127.62) (  -0.83,-124.27)  382.38                80
 08/28/2020   22:02:19   (   0.06,-127.51) (  -0.41,-129.56)  234.25                80
 08/29/2020   21:46:15   (   0.06,-127.46) (   0.59,-125.03)  277.13                80
 08/31/2020   10:05:23   (  -0.07,-127.43) (   0.59,-130.30)  327.00                80
 09/01/2020   09:49:19   (  -0.06,-127.38) (  -0.41,-125.76)  184.34                80