Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 1 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)
 01/12/2021   08:11:02   (  -0.07,-104.36) (  -0.59,-102.01)  267.52                80
 01/13/2021   20:32:57   (   0.07,-104.08) (  -0.68,-107.30)  367.43                80
 01/14/2021   20:16:53   (   0.07,-104.08) (   0.34,-102.77)  149.07                80
 01/16/2021   08:36:02   (  -0.07,-104.37) (   0.75,-108.06)  421.13                80
 01/17/2021   08:19:58   (  -0.07,-104.37) (  -0.27,-103.53)   95.65                80
 01/19/2021   20:23:08   (   0.07,-104.10) (   0.03,-104.29)   21.56                80
 01/20/2021   20:04:24   (   0.07,-104.11) (   1.05, -99.76)  495.30                80
 01/22/2021   08:23:32   (  -0.07,-104.39) (   0.10,-105.04)   74.50                80
 01/23/2021   08:07:28   (  -0.06,-104.40) (  -0.92,-100.51)  442.46                80
 01/24/2021   20:29:23   (   0.06,-104.13) (  -0.33,-105.80)  191.38                80
 01/25/2021   20:07:59   (   0.05,-104.13) (   0.69,-101.27)  325.15                80