Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2021   06:31:50   (  -0.02, -75.19) (   0.28, -76.40)  139.30                80
 05/21/2021   06:10:27   (  -0.02, -75.18) (  -0.75, -71.88)  376.46                80
 05/22/2021   18:32:24   (   0.02, -75.18) (  -0.45, -77.18)  228.96                80
 05/23/2021   18:16:21   (   0.02, -75.18) (   0.59, -72.66)  287.08                80
 05/25/2021   06:38:10   (  -0.02, -75.18) (   0.56, -77.94)  313.79                80
 05/26/2021   06:16:46   (  -0.02, -75.18) (  -0.41, -73.40)  202.30                80
 05/27/2021   18:38:43   (   0.03, -75.18) (  -0.78, -78.71)  402.79                80
 05/28/2021   18:22:39   (   0.03, -75.18) (   0.26, -74.19)  113.56                80
 05/30/2021   06:41:48   (  -0.03, -75.19) (   0.95, -79.45)  486.62                80
 05/31/2021   06:25:44   (  -0.03, -75.19) (  -0.08, -74.93)   30.22                80