Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 5 19.  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) (   0.61,-106.46)  262.54                80
 05/20/2021   08:13:31   (   0.12,-104.16) (  -0.36,-101.92)  254.18                80
 05/21/2021   20:35:30   (  -0.10,-104.32) (  -0.78,-107.24)  333.98                80
 05/22/2021   20:14:06   (  -0.12,-104.31) (   0.26,-102.72)  181.75                80
 05/24/2021   08:35:54   (   0.09,-104.14) (   0.95,-107.98)  438.26                80
 05/25/2021   08:19:50   (   0.10,-104.14) (  -0.03,-103.45)   78.26                80
 05/27/2021   20:20:25   (  -0.09,-104.30) (  -0.07,-104.24)    6.72                80
 05/30/2021   08:23:30   (   0.08,-104.11) (   0.25,-104.98)   98.97                80
 05/31/2021   08:07:25   (   0.09,-104.11) (  -0.73,-100.45)  417.64                80
 06/01/2021   20:29:23   (  -0.07,-104.29) (  -0.39,-105.77)  168.07                80