Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 12 13.  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   08:34:06   (   0.02,-104.49) (   0.54,-106.70)  252.29                80
 12/14/2021   08:12:41   (   0.03,-104.49) (  -0.49,-102.17)  264.56                80
 12/15/2021   20:34:34   (  -0.01,-104.19) (  -0.78,-107.45)  373.14                80
 12/16/2021   20:18:29   (  -0.03,-104.19) (   0.26,-102.92)  144.75                80
 12/18/2021   08:40:16   (   0.01,-104.52) (   0.84,-108.21)  420.17                80
 12/19/2021   08:18:51   (   0.02,-104.52) (  -0.20,-103.68)   96.63                80
 12/21/2021   20:21:57   (  -0.02,-104.20) (  -0.09,-104.41)   25.67                80
 12/22/2021   20:05:52   (  -0.02,-104.20) (   0.94, -99.88)  492.13                80
 12/24/2021   08:27:39   (   0.00,-104.53) (   0.15,-105.17)   72.21                80
 12/25/2021   08:06:14   (   0.01,-104.53) (  -0.88,-100.64)  444.60                80
 12/26/2021   20:28:07   (   0.00,-104.20) (  -0.37,-105.92)  195.53                80