Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/29/2021   06:20:14   (  -0.10, -75.20) (  -0.46, -73.54)  188.00                80
 07/30/2021   18:39:31   (   0.11, -75.20) (  -0.74, -78.85)  416.39                80
 07/31/2021   18:23:28   (   0.11, -75.21) (   0.31, -74.33)  100.34                80
 08/03/2021   06:26:33   (  -0.12, -75.22) (  -0.15, -75.07)   16.53                80
 08/05/2021   18:27:07   (   0.13, -75.23) (   0.01, -75.86)   70.62                80
 08/06/2021   18:11:02   (   0.13, -75.24) (   1.00, -71.32)  446.58                80
 08/08/2021   06:30:11   (  -0.14, -75.25) (   0.14, -76.60)  152.98                80
 08/09/2021   06:14:07   (  -0.14, -75.26) (  -0.85, -72.07)  364.40                80
 08/10/2021   18:33:24   (   0.15, -75.28) (  -0.34, -77.37)  238.72                80
 08/11/2021   18:17:21   (   0.14, -75.30) (   0.71, -72.85)  279.26                80