Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2019   18:29:03   (  -0.01, -75.19) (  -0.14, -75.70)   58.01                80
 12/23/2019   18:07:38   (  -0.01, -75.20) (   0.87, -71.16)  458.92                80
 12/25/2019   06:32:05   (   0.01, -75.19) (   0.27, -76.44)  141.39                80
 12/26/2019   06:10:40   (   0.01, -75.20) (  -0.74, -71.91)  375.61                80
 12/27/2019   18:35:15   (  -0.01, -75.21) (  -0.45, -77.21)  226.96                80
 12/28/2019   18:13:49   (  -0.00, -75.22) (   0.56, -72.67)  290.48                80
 12/30/2019   06:38:17   (   0.00, -75.23) (   0.58, -77.95)  308.54                80
 12/31/2019   06:16:51   (  -0.00, -75.25) (  -0.43, -73.41)  209.30                80
 01/01/2020   18:41:27   (   0.00, -75.27) (  -0.76, -78.71)  391.82                80
 01/02/2020   18:20:01   (   0.01, -75.29) (   0.25, -74.18)  126.55                80