Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 12 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/06/2021   20:06:10   (  -0.06,-104.18) (   0.87, -99.92)  485.20                80
 12/08/2021   08:27:57   (   0.04,-104.47) (   0.23,-105.20)   84.13                80
 12/09/2021   08:06:31   (   0.05,-104.47) (  -0.80,-100.67)  432.52                80
 12/10/2021   20:28:26   (  -0.03,-104.18) (  -0.41,-105.97)  203.24                80
 12/11/2021   20:12:19   (  -0.04,-104.19) (   0.56,-101.42)  314.98                80
 12/13/2021   08:34:08   (   0.02,-104.51) (   0.48,-106.72)  251.05                80
 12/14/2021   08:12:41   (   0.03,-104.51) (  -0.49,-102.17)  266.19                80
 12/15/2021   20:34:35   (  -0.01,-104.21) (  -0.71,-107.47)  371.22                80
 12/16/2021   20:18:29   (  -0.02,-104.22) (   0.26,-102.93)  147.01                80
 12/18/2021   08:40:16   (   0.01,-104.55) (   0.84,-108.21)  417.21                80
 12/19/2021   08:18:51   (   0.02,-104.55) (  -0.20,-103.68)   99.97                80