Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/15/2021   18:25:58   (   0.04, -75.20) (  -0.09, -75.66)   52.82                80
 04/16/2021   18:09:54   (   0.04, -75.19) (   0.96, -71.13)  463.40                80
 04/18/2021   06:31:40   (  -0.04, -75.19) (   0.25, -76.39)  136.49                80
 04/19/2021   06:10:16   (  -0.04, -75.19) (  -0.81, -71.86)  379.69                80
 04/20/2021   18:32:11   (   0.03, -75.18) (  -0.41, -77.16)  225.52                80
 04/21/2021   18:16:05   (   0.03, -75.18) (   0.58, -72.62)  291.16                80
 04/23/2021   06:37:53   (  -0.02, -75.19) (   0.56, -77.89)  307.55                80
 04/24/2021   06:16:27   (  -0.02, -75.19) (  -0.43, -73.35)  209.28                80
 04/25/2021   18:38:23   (   0.02, -75.18) (  -0.78, -78.65)  395.24                80
 04/26/2021   18:22:18   (   0.02, -75.19) (   0.28, -74.12)  122.01                80
 04/28/2021   06:44:04   (  -0.02, -75.21) (   0.93, -79.38)  475.77                80