Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/30/2021   18:39:32   (   0.10, -75.21) (  -0.70, -78.86)  415.16                80
 07/31/2021   18:23:28   (   0.10, -75.22) (   0.29, -74.32)  102.00                80
 08/02/2021   06:45:17   (  -0.11, -75.23) (   0.85, -79.60)  498.16                80
 08/03/2021   06:23:52   (  -0.11, -75.24) (  -0.13, -75.07)   19.03                80
 08/05/2021   18:27:06   (   0.12, -75.27) (  -0.01, -75.85)   66.73                80
 08/06/2021   18:11:03   (   0.12, -75.28) (   1.04, -71.33)  450.87                80
 08/08/2021   06:32:51   (  -0.14, -75.29) (   0.16, -76.60)  148.31                80
 08/09/2021   06:14:07   (  -0.13, -75.31) (  -0.83, -72.06)  369.49                80
 08/10/2021   18:33:25   (   0.14, -75.33) (  -0.30, -77.38)  232.66                80
 08/11/2021   18:17:21   (   0.14, -75.35) (   0.69, -72.85)  285.76                80