Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 12 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2019   20:33:13   (  -0.01,-104.05) (  -0.75,-107.30)  371.13                80
 12/11/2019   20:17:08   (  -0.02,-104.05) (   0.25,-102.77)  146.19                80
 12/13/2019   08:38:56   (   0.01,-104.28) (   0.83,-108.05)  429.27                80
 12/14/2019   08:17:31   (   0.02,-104.27) (  -0.17,-103.52)   86.72                80
 12/16/2019   20:20:39   (  -0.01,-104.03) (  -0.08,-104.27)   27.75                80
 12/17/2019   20:04:34   (  -0.02,-104.03) (   0.92, -99.73)  489.33                80
 12/19/2019   08:26:22   (  -0.00,-104.27) (   0.16,-105.02)   85.33                80
 12/20/2019   08:04:57   (   0.01,-104.27) (  -0.84,-100.49)  430.76                80
 12/21/2019   20:26:51   (   0.01,-104.02) (  -0.41,-105.77)  201.02                80
 12/22/2019   20:10:46   (  -0.00,-104.02) (   0.59,-101.24)  316.16                80
 12/24/2019   08:32:34   (  -0.01,-104.28) (   0.49,-106.53)  256.56                80