Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2022   10:14:26   (   0.08,-128.10) (   0.92,-131.82)  424.11                80
 03/20/2022   09:53:02   (   0.08,-128.13) (  -0.11,-127.29)   95.39                80
 03/22/2022   21:56:14   (  -0.08,-128.20) (  -0.05,-128.07)   15.14                80
 03/25/2022   10:01:57   (   0.09,-128.25) (   0.22,-128.81)   63.23                80
 03/26/2022   09:40:32   (   0.09,-128.27) (  -0.81,-124.28)  455.23                80
 03/27/2022   22:02:28   (  -0.10,-128.30) (  -0.37,-129.59)  145.68                80
 03/28/2022   21:46:23   (  -0.10,-128.32) (   0.60,-125.05)  372.93                80
 03/30/2022   10:08:11   (   0.11,-128.35) (   0.54,-130.32)  224.47                80
 03/31/2022   09:46:47   (   0.11,-128.37) (  -0.49,-125.80)  293.95                80