Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 12 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/03/2021   08:19:07   (   0.06,-104.45) (  -0.10,-103.70)   84.84                80
 12/05/2021   20:22:15   (  -0.05,-104.17) (  -0.14,-104.45)   32.76                80
 12/06/2021   20:06:10   (  -0.06,-104.18) (   0.88, -99.92)  485.12                80
 12/08/2021   08:27:57   (   0.04,-104.47) (   0.22,-105.21)   84.15                80
 12/09/2021   08:06:32   (   0.05,-104.47) (  -0.81,-100.67)  432.44                80
 12/10/2021   20:28:26   (  -0.03,-104.18) (  -0.40,-105.97)  203.43                80
 12/11/2021   20:12:20   (  -0.04,-104.19) (   0.57,-101.43)  314.79                80
 12/13/2021   08:34:07   (   0.01,-104.51) (   0.53,-106.71)  251.20                80
 12/14/2021   08:12:41   (   0.03,-104.51) (  -0.50,-102.18)  266.01                80
 12/15/2021   20:34:35   (  -0.01,-104.21) (  -0.76,-107.46)  371.49                80
 12/16/2021   20:18:29   (  -0.02,-104.22) (   0.27,-102.93)  146.72                80