Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 5 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)
 05/18/2021   09:40:36   (   0.06,-128.24) (  -0.81,-124.41)  437.30                80
 05/19/2021   22:02:32   (  -0.07,-128.21) (  -0.42,-129.70)  170.67                80
 05/20/2021   21:46:28   (  -0.07,-128.23) (   0.59,-125.17)  348.08                80
 05/22/2021   10:08:16   (   0.07,-128.33) (   0.57,-130.45)  242.05                80
 05/23/2021   09:46:53   (   0.07,-128.35) (  -0.49,-125.93)  275.79                80
 05/24/2021   22:08:49   (  -0.07,-128.30) (  -0.73,-131.23)  334.17                80
 05/25/2021   21:52:45   (  -0.07,-128.32) (   0.28,-126.70)  183.70                80
 05/27/2021   10:14:33   (   0.07,-128.41) (   0.88,-131.98)  406.96                80
 05/28/2021   09:53:08   (   0.07,-128.42) (  -0.13,-127.45)  110.03                80
 05/30/2021   21:59:00   (  -0.07,-128.36) (  -0.07,-128.22)   15.83                80