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

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/13/2021   08:34:07   (   0.02,-104.50) (   0.51,-106.71)  252.22                80
 12/14/2021   08:12:41   (   0.03,-104.49) (  -0.47,-102.17)  264.68                80
 12/15/2021   20:34:35   (  -0.01,-104.19) (  -0.74,-107.46)  373.05                80
 12/16/2021   20:18:28   (  -0.02,-104.20) (   0.23,-102.92)  144.92                80
 12/18/2021   08:40:17   (   0.01,-104.52) (   0.81,-108.21)  419.85                80
 12/19/2021   08:18:50   (   0.02,-104.52) (  -0.17,-103.67)   96.98                80
 12/21/2021   20:21:58   (  -0.01,-104.20) (  -0.06,-104.42)   25.03                80
 12/22/2021   20:05:53   (  -0.02,-104.21) (   0.97, -99.89)  492.64                80
 12/24/2021   08:27:40   (   0.00,-104.54) (   0.12,-105.17)   71.59                80
 12/25/2021   08:06:13   (   0.01,-104.54) (  -0.85,-100.63)  445.33                80