Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 1 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2021   20:32:57   (   0.07,-104.08) (  -0.66,-107.30)  367.53                80
 01/14/2021   20:16:53   (   0.07,-104.08) (   0.35,-102.77)  148.89                80
 01/16/2021   08:36:02   (  -0.07,-104.36) (   0.74,-108.06)  421.40                80
 01/17/2021   08:19:58   (  -0.07,-104.37) (  -0.28,-103.53)   95.35                80
 01/19/2021   20:23:09   (   0.07,-104.10) (   0.04,-104.30)   22.08                80
 01/20/2021   20:04:24   (   0.07,-104.10) (   1.06, -99.77)  494.76                80
 01/22/2021   08:23:33   (  -0.07,-104.39) (   0.09,-105.04)   75.11                80
 01/23/2021   08:07:28   (  -0.06,-104.39) (  -0.93,-100.51)  441.75                80
 01/24/2021   20:29:23   (   0.06,-104.12) (  -0.32,-105.80)  192.17                80
 01/25/2021   20:07:59   (   0.06,-104.12) (   0.70,-101.28)  324.29                80