Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/19/2021   08:29:36   (   0.11,-104.15) (   0.60,-106.46)  262.60                80
 05/20/2021   08:13:31   (   0.12,-104.16) (  -0.37,-101.93)  254.10                80
 05/21/2021   20:35:30   (  -0.10,-104.31) (  -0.77,-107.24)  334.12                80
 05/22/2021   20:14:06   (  -0.12,-104.31) (   0.27,-102.72)  181.58                80
 05/24/2021   08:35:55   (   0.09,-104.14) (   0.94,-107.99)  438.47                80
 05/25/2021   08:19:50   (   0.10,-104.14) (  -0.04,-103.45)   77.98                80
 05/27/2021   20:23:05   (  -0.09,-104.30) (  -0.06,-104.24)    6.59                80
 05/30/2021   08:23:29   (   0.08,-104.11) (   0.29,-104.97)   99.31                80
 05/31/2021   08:07:25   (   0.09,-104.11) (  -0.75,-100.45)  417.26                80