Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 7 6.  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)
 07/06/2021   22:02:41   (   0.03,-128.04) (  -0.35,-129.79)  200.00                80
 07/07/2021   21:46:36   (   0.02,-128.01) (   0.61,-125.25)  313.25                80
 07/09/2021   10:05:44   (  -0.04,-128.04) (   0.54,-130.53)  284.89                80
 07/10/2021   09:49:40   (  -0.03,-128.00) (  -0.48,-126.00)  227.83                80
 07/11/2021   22:08:56   (   0.05,-127.87) (  -0.71,-131.30)  391.90                80
 07/12/2021   21:52:51   (   0.04,-127.83) (   0.25,-126.76)  120.81                80
 07/14/2021   10:11:59   (  -0.06,-127.85) (   0.90,-132.04)  477.75                80
 07/15/2021   09:55:54   (  -0.05,-127.81) (  -0.12,-127.51)   34.58                80
 07/17/2021   21:56:25   (   0.06,-127.63) (  -0.10,-128.28)   74.02                80
 07/18/2021   21:40:21   (   0.05,-127.59) (   0.92,-123.75)  437.86                80