Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 1 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/19/2021   20:23:09   (   0.07,-104.09) (   0.03,-104.29)   23.08                80
 01/20/2021   20:04:24   (   0.07,-104.09) (   1.05, -99.76)  493.52                80
 01/22/2021   08:23:32   (  -0.07,-104.37) (   0.10,-105.04)   76.52                80
 01/23/2021   08:07:28   (  -0.06,-104.37) (  -0.92,-100.51)  440.12                80
 01/24/2021   20:29:23   (   0.06,-104.10) (  -0.32,-105.80)  194.27                80
 01/25/2021   20:07:59   (   0.06,-104.10) (   0.70,-101.27)  321.99                80
 01/27/2021   08:29:47   (  -0.05,-104.37) (   0.45,-106.55)  248.88                80
 01/28/2021   08:13:43   (  -0.05,-104.37) (  -0.57,-102.02)  267.60                80
 01/29/2021   20:35:38   (   0.04,-104.10) (  -0.67,-107.32)  366.27                80
 01/30/2021   20:14:13   (   0.04,-104.10) (   0.36,-102.79)  149.78                80