Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 3 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)
 03/29/2021   20:29:11   (  -0.12,-104.32) (  -0.45,-105.74)  162.84                80
 03/30/2021   20:07:46   (  -0.12,-104.31) (   0.59,-101.22)  352.64                80
 04/01/2021   08:29:34   (   0.12,-104.36) (   0.58,-106.48)  242.02                80
 04/02/2021   08:13:28   (   0.12,-104.36) (  -0.41,-101.95)  274.94                80
 04/03/2021   20:35:24   (  -0.13,-104.32) (  -0.81,-107.24)  333.72                80
 04/04/2021   20:13:59   (  -0.13,-104.31) (   0.24,-102.71)  181.67                80
 04/06/2021   08:35:45   (   0.14,-104.33) (   0.98,-107.97)  415.63                80
 04/07/2021   08:19:41   (   0.14,-104.34) (  -0.06,-103.44)  101.61                80
 04/09/2021   20:20:12   (  -0.14,-104.32) (  -0.10,-104.21)   12.38                80