Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 5 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/14/2021   08:23:17   (   0.12,-104.18) (   0.28,-104.94)   86.24                80
 05/15/2021   08:07:12   (   0.13,-104.18) (  -0.70,-100.40)  430.26                80
 05/16/2021   20:29:11   (  -0.12,-104.31) (  -0.45,-105.72)  160.53                80
 05/17/2021   20:07:47   (  -0.13,-104.30) (   0.58,-101.19)  354.82                80
 05/19/2021   08:29:36   (   0.11,-104.15) (   0.63,-106.46)  263.27                80
 05/20/2021   08:13:31   (   0.12,-104.15) (  -0.35,-101.92)  253.25                80
 05/21/2021   20:35:30   (  -0.10,-104.30) (  -0.74,-107.25)  335.36                80
 05/22/2021   20:14:06   (  -0.12,-104.30) (   0.24,-102.72)  180.13                80
 05/24/2021   08:35:54   (   0.09,-104.12) (   0.98,-107.98)  440.12                80
 05/25/2021   08:19:51   (   0.10,-104.12) (  -0.06,-103.46)   76.14                80