Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 1 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/11/2021   08:29:46   (  -0.07,-104.36) (   0.43,-106.54)  248.72                80
 01/12/2021   08:11:02   (  -0.07,-104.36) (  -0.58,-102.01)  267.60                80
 01/13/2021   20:32:58   (   0.07,-104.08) (  -0.62,-107.31)  367.35                80
 01/14/2021   20:16:53   (   0.07,-104.09) (   0.34,-102.77)  149.21                80
 01/16/2021   08:36:02   (  -0.07,-104.37) (   0.75,-108.06)  420.91                80
 01/17/2021   08:19:58   (  -0.07,-104.37) (  -0.26,-103.53)   95.90                80
 01/19/2021   20:23:08   (   0.07,-104.11) (   0.03,-104.29)   21.25                80
 01/20/2021   20:04:24   (   0.07,-104.11) (   1.05, -99.76)  495.65                80
 01/22/2021   08:23:32   (  -0.07,-104.40) (   0.11,-105.04)   74.09                80
 01/23/2021   08:07:28   (  -0.06,-104.40) (  -0.91,-100.51)  442.95                80
 01/24/2021   20:29:23   (   0.06,-104.13) (  -0.33,-105.80)  190.90                80