Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 6 30.  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)
 07/01/2021   21:56:26   (   0.00,-128.17) (  -0.04,-128.27)   12.44                80
 07/04/2021   09:59:30   (  -0.01,-128.19) (   0.17,-129.02)   94.35                80
 07/05/2021   09:43:25   (  -0.00,-128.17) (  -0.84,-124.49)  419.25                80
 07/06/2021   22:02:41   (   0.02,-128.04) (  -0.35,-129.80)  199.42                80
 07/07/2021   21:46:36   (   0.02,-128.01) (   0.61,-125.25)  314.05                80
 07/09/2021   10:05:44   (  -0.04,-128.05) (   0.54,-130.53)  283.04                80
 07/10/2021   09:49:40   (  -0.03,-128.02) (  -0.48,-126.00)  229.85                80
 07/11/2021   22:08:56   (   0.05,-127.88) (  -0.70,-131.31)  390.32                80
 07/12/2021   21:52:51   (   0.04,-127.85) (   0.26,-126.77)  122.59                80