Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 5 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/31/2021   08:07:25   (   0.09,-104.13) (  -0.74,-100.45)  419.71                80
 06/01/2021   20:26:43   (  -0.06,-104.32) (  -0.40,-105.76)  164.44                80
 06/02/2021   20:07:59   (  -0.08,-104.32) (   0.59,-101.23)  351.89                80
 06/04/2021   08:29:48   (   0.05,-104.12) (   0.56,-106.51)  271.23                80
 06/05/2021   08:13:44   (   0.06,-104.13) (  -0.42,-101.97)  245.84                80
 06/06/2021   20:33:02   (  -0.04,-104.34) (  -0.71,-107.29)  336.69                80
 06/07/2021   20:16:58   (  -0.05,-104.34) (   0.28,-102.76)  179.78                80
 06/09/2021   08:36:07   (   0.02,-104.13) (   0.87,-108.03)  444.69                80
 06/10/2021   08:20:02   (   0.03,-104.13) (  -0.12,-103.50)   72.11                80
 06/12/2021   20:20:36   (  -0.02,-104.34) (  -0.02,-104.28)    6.71                80