Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/30/2021   20:28:58   (  -0.14,-104.32) (  -0.44,-105.67)  154.32                80
 05/01/2021   20:07:33   (  -0.15,-104.31) (   0.53,-101.14)  360.89                80
 05/03/2021   08:29:22   (   0.15,-104.21) (   0.63,-106.42)  250.58                80
 05/04/2021   08:13:18   (   0.15,-104.22) (  -0.35,-101.88)  266.24                80
 05/05/2021   20:35:16   (  -0.14,-104.33) (  -0.81,-107.19)  327.39                80
 05/06/2021   20:13:53   (  -0.15,-104.32) (   0.23,-102.67)  188.42                80
 05/08/2021   08:35:41   (   0.14,-104.21) (   0.99,-107.94)  424.71                80
 05/09/2021   08:19:38   (   0.15,-104.22) (  -0.05,-103.41)   92.45                80
 05/10/2021   20:41:36   (  -0.13,-104.35) (  -1.10,-108.73)  498.65                80
 05/11/2021   20:20:11   (  -0.14,-104.35) (  -0.12,-104.19)   17.34                80