Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 3 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/17/2022   21:49:58   (  -0.08,-128.06) (   0.23,-126.55)  171.38                80
 03/19/2022   10:14:27   (   0.08,-128.10) (   0.91,-131.82)  424.12                80
 03/20/2022   09:53:02   (   0.08,-128.13) (  -0.11,-127.30)   95.34                80
 03/22/2022   21:56:14   (  -0.08,-128.20) (  -0.04,-128.07)   14.82                80
 03/25/2022   10:01:57   (   0.09,-128.25) (   0.21,-128.81)   63.52                80
 03/26/2022   09:40:32   (   0.09,-128.27) (  -0.82,-124.28)  454.91                80
 03/27/2022   22:02:28   (  -0.10,-128.30) (  -0.41,-129.58)  146.30                80
 03/28/2022   21:46:23   (  -0.10,-128.32) (   0.62,-125.05)  372.27                80
 03/30/2022   10:08:11   (   0.11,-128.35) (   0.52,-130.33)  224.98                80