Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 10 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/06/2021   06:24:21   (  -0.09, -75.21) (  -0.14, -75.10)   13.81                80
 10/08/2021   18:30:12   (   0.09, -75.24) (  -0.06, -75.86)   71.23                80
 10/09/2021   18:08:48   (   0.09, -75.25) (   0.95, -71.33)  446.07                80
 10/11/2021   06:33:16   (  -0.08, -75.25) (   0.22, -76.60)  153.50                80
 10/12/2021   06:11:52   (  -0.09, -75.26) (  -0.80, -72.07)  363.67                80
 10/13/2021   18:36:28   (   0.08, -75.28) (  -0.40, -77.37)  238.05                80
 10/14/2021   18:15:05   (   0.09, -75.30) (   0.67, -72.85)  279.75                80
 10/16/2021   06:39:32   (  -0.08, -75.32) (   0.56, -78.10)  318.32                80
 10/17/2021   06:18:08   (  -0.09, -75.33) (  -0.51, -73.59)  199.95                80