Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/09/2021   08:06:31   (   0.05,-104.46) (  -0.77,-100.66)  432.33                80
 12/10/2021   20:28:25   (  -0.03,-104.18) (  -0.44,-105.96)  203.59                80
 12/11/2021   20:12:20   (  -0.04,-104.19) (   0.59,-101.43)  314.52                80
 12/13/2021   08:34:07   (   0.02,-104.50) (   0.51,-106.71)  251.61                80
 12/14/2021   08:12:41   (   0.03,-104.50) (  -0.47,-102.17)  265.52                80
 12/15/2021   20:34:35   (  -0.01,-104.20) (  -0.74,-107.46)  372.08                80
 12/16/2021   20:18:28   (  -0.02,-104.21) (   0.24,-102.92)  146.07                80
 12/18/2021   08:40:17   (   0.01,-104.54) (   0.80,-108.22)  418.29                80
 12/19/2021   08:18:50   (   0.02,-104.54) (  -0.18,-103.67)   98.77                80
 12/21/2021   20:21:58   (  -0.01,-104.22) (  -0.05,-104.42)   22.87                80
 12/22/2021   20:05:52   (  -0.02,-104.23) (   0.93, -99.88)  495.02                80