Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 12 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)
 12/11/2021   20:12:19   (  -0.04,-104.18) (   0.56,-101.42)  314.37                80
 12/13/2021   08:34:07   (   0.02,-104.50) (   0.53,-106.70)  252.06                80
 12/14/2021   08:12:41   (   0.03,-104.50) (  -0.50,-102.17)  264.93                80
 12/15/2021   20:34:34   (  -0.01,-104.19) (  -0.77,-107.46)  372.75                80
 12/16/2021   20:18:29   (  -0.02,-104.20) (   0.27,-102.93)  145.26                80
 12/18/2021   08:40:16   (   0.01,-104.53) (   0.83,-108.21)  419.31                80
 12/19/2021   08:18:50   (   0.02,-104.53) (  -0.15,-103.67)   97.63                80
 12/21/2021   20:21:58   (  -0.01,-104.21) (  -0.08,-104.42)   24.32                80
 12/22/2021   20:05:52   (  -0.02,-104.22) (   0.96, -99.89)  493.48                80
 12/24/2021   08:27:39   (   0.00,-104.55) (   0.13,-105.17)   70.53                80