Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 10 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/23/2020   10:14:19   (  -0.13,-128.28) (   0.65,-131.88)  409.11                80
 10/24/2020   09:52:53   (  -0.14,-128.26) (  -0.34,-127.34)  105.18                80
 10/26/2020   21:56:03   (   0.14,-128.20) (   0.14,-128.11)   10.78                80
 10/29/2020   10:01:45   (  -0.13,-128.16) (   0.03,-128.84)   77.76                80
 10/30/2020   09:40:20   (  -0.14,-128.14) (  -1.02,-124.32)  436.33                80
 10/31/2020   22:04:55   (   0.12,-128.10) (  -0.23,-129.61)  172.51                80
 11/01/2020   21:43:30   (   0.13,-128.07) (   0.83,-125.09)  340.91                80
 11/03/2020   10:07:56   (  -0.11,-128.04) (   0.40,-130.35)  262.93                80
 11/04/2020   09:46:31   (  -0.12,-128.01) (  -0.60,-125.81)  250.27                80