Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 6 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2021   09:40:44   (   0.05,-128.46) (  -0.85,-124.47)  454.78                80
 06/20/2021   22:02:40   (  -0.03,-128.37) (  -0.35,-129.77)  160.64                80
 06/21/2021   21:46:35   (  -0.04,-128.36) (   0.66,-125.25)  354.52                80
 06/23/2021   10:05:44   (   0.02,-128.42) (   0.49,-130.52)  240.13                80
 06/24/2021   09:49:39   (   0.02,-128.40) (  -0.52,-125.99)  274.26                80
 06/25/2021   22:08:56   (  -0.01,-128.28) (  -0.68,-131.30)  343.10                80
 06/26/2021   21:52:51   (  -0.02,-128.27) (   0.34,-126.77)  171.51                80
 06/28/2021   10:11:59   (   0.01,-128.33) (   0.82,-132.04)  423.12                80
 06/29/2021   09:55:54   (   0.02,-128.31) (  -0.14,-127.50)   91.30                80
 07/01/2021   21:56:26   (  -0.02,-128.17) (  -0.03,-128.28)   12.04                80