Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/07/2021   08:19:40   (   0.14,-104.32) (  -0.03,-103.44)  100.32                80
 04/09/2021   20:20:11   (  -0.15,-104.31) (  -0.14,-104.20)   11.78                80
 04/12/2021   08:23:13   (   0.15,-104.31) (   0.31,-104.94)   72.07                80
 04/13/2021   08:07:09   (   0.15,-104.31) (  -0.74,-100.41)  445.29                80
 04/14/2021   20:29:04   (  -0.15,-104.32) (  -0.47,-105.71)  157.78                80
 04/15/2021   20:07:39   (  -0.15,-104.32) (   0.57,-101.18)  357.89                80
 04/17/2021   08:29:26   (   0.15,-104.29) (   0.64,-106.44)  244.63                80
 04/18/2021   08:13:20   (   0.15,-104.30) (  -0.35,-101.90)  272.53                80
 04/19/2021   20:35:16   (  -0.15,-104.33) (  -0.80,-107.21)  328.23                80
 04/20/2021   20:13:51   (  -0.16,-104.32) (   0.19,-102.67)  187.34                80