Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/07/2021   06:38:00   (  -0.03, -75.19) (   0.60, -77.92)  311.34                80
 04/08/2021   06:16:35   (  -0.02, -75.19) (  -0.44, -73.39)  205.50                80
 04/09/2021   18:38:31   (   0.02, -75.21) (  -0.78, -78.69)  397.35                80
 04/10/2021   18:22:26   (   0.02, -75.21) (   0.27, -74.16)  120.19                80
 04/12/2021   06:44:12   (  -0.02, -75.23) (   0.94, -79.42)  478.41                80
 04/13/2021   06:22:48   (  -0.02, -75.24) (  -0.10, -74.89)   39.17                80
 04/15/2021   18:25:59   (   0.02, -75.27) (  -0.07, -75.66)   45.08                80
 04/16/2021   18:09:53   (   0.02, -75.28) (   0.93, -71.12)  473.04                80
 04/18/2021   06:31:41   (  -0.02, -75.30) (   0.23, -76.39)  124.65                80
 04/19/2021   06:10:15   (  -0.02, -75.31) (  -0.76, -71.86)  393.44                80