Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 6 22.  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)
 06/23/2021   10:05:59   (   0.01,-128.42) (   0.46,-130.53)  240.04                65
 06/24/2021   09:46:59   (   0.02,-128.40) (  -0.49,-125.99)  274.46                80
 06/25/2021   22:08:56   (  -0.01,-128.29) (  -0.65,-131.30)  342.59                80
 06/26/2021   21:52:51   (  -0.01,-128.27) (   0.31,-126.76)  172.13                80
 06/28/2021   10:11:59   (   0.00,-128.33) (   0.85,-132.03)  422.51                80
 06/29/2021   09:55:54   (   0.01,-128.31) (  -0.16,-127.51)   91.95                80
 07/01/2021   21:56:26   (  -0.01,-128.18) (  -0.02,-128.28)   11.08                80
 07/04/2021   09:59:30   (   0.00,-128.22) (   0.16,-129.03)   91.39                80
 07/05/2021   09:43:25   (   0.01,-128.20) (  -0.79,-124.48)  422.55                80