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   08:23:16   (   0.12,-104.18) (   0.31,-104.93)   86.25                80
 05/15/2021   08:07:13   (   0.13,-104.18) (  -0.73,-100.41)  430.24                80
 05/16/2021   20:29:11   (  -0.12,-104.31) (  -0.42,-105.72)  160.52                80
 05/17/2021   20:07:47   (  -0.13,-104.30) (   0.55,-101.19)  354.81                80
 05/19/2021   08:29:35   (   0.11,-104.15) (   0.66,-106.45)  263.30                80
 05/20/2021   08:13:32   (   0.13,-104.15) (  -0.38,-101.93)  253.22                80
 05/21/2021   20:35:30   (  -0.11,-104.30) (  -0.77,-107.25)  335.36                80
 05/22/2021   20:14:05   (  -0.12,-104.30) (   0.21,-102.71)  180.15                80
 05/24/2021   08:35:55   (   0.09,-104.12) (   0.95,-107.99)  440.13                80
 05/25/2021   08:19:50   (   0.10,-104.12) (  -0.03,-103.45)   76.14                80