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

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/14/2021   20:16:53   (   0.07,-104.08) (   0.35,-102.77)  148.84                80
 01/16/2021   08:36:02   (  -0.07,-104.36) (   0.75,-108.06)  421.49                80
 01/17/2021   08:19:58   (  -0.07,-104.37) (  -0.27,-103.53)   95.20                80
 01/19/2021   20:23:09   (   0.07,-104.10) (   0.03,-104.29)   22.27                80
 01/20/2021   20:04:07   (   0.07,-104.10) (   1.05, -99.76)  494.48                63
 01/22/2021   08:23:32   (  -0.07,-104.38) (   0.10,-105.04)   75.47                80
 01/23/2021   08:07:28   (  -0.06,-104.39) (  -0.91,-100.51)  441.39                80
 01/24/2021   20:29:23   (   0.06,-104.12) (  -0.34,-105.80)  192.62                80
 01/25/2021   20:07:59   (   0.06,-104.12) (   0.69,-101.27)  323.81                80
 01/27/2021   08:29:48   (  -0.05,-104.39) (   0.41,-106.56)  247.01                80