Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 1 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/04/2021   20:04:22   (   0.08,-104.08) (   1.02, -99.74)  494.08                80
 01/06/2021   08:26:11   (  -0.08,-104.36) (   0.07,-105.03)   76.13                80
 01/07/2021   08:04:47   (  -0.08,-104.36) (  -0.94,-100.50)  440.14                80
 01/08/2021   20:26:42   (   0.08,-104.08) (  -0.33,-105.79)  195.50                80
 01/09/2021   20:10:38   (   0.07,-104.08) (   0.69,-101.26)  321.01                80
 01/11/2021   08:29:47   (  -0.07,-104.36) (   0.40,-106.55)  248.90                80
 01/12/2021   08:11:02   (  -0.06,-104.36) (  -0.62,-102.02)  267.33                80
 01/13/2021   20:32:58   (   0.07,-104.07) (  -0.64,-107.31)  368.71                80
 01/14/2021   20:16:53   (   0.06,-104.07) (   0.38,-102.78)  147.77                80
 01/16/2021   08:36:02   (  -0.07,-104.36) (   0.78,-108.06)  421.57                80
 01/17/2021   08:19:57   (  -0.07,-104.37) (  -0.24,-103.53)   95.16                80