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)
 06/18/2021   09:59:28   (   0.04,-128.47) (   0.19,-129.00)   60.61                80
 06/19/2021   09:40:43   (   0.05,-128.46) (  -0.83,-124.47)  454.76                80
 06/20/2021   22:02:39   (  -0.03,-128.37) (  -0.38,-129.77)  160.82                80
 06/21/2021   21:46:35   (  -0.04,-128.35) (   0.64,-125.24)  354.32                80
 06/23/2021   10:05:43   (   0.02,-128.41) (   0.52,-130.52)  240.41                80
 06/24/2021   09:49:39   (   0.03,-128.39) (  -0.50,-125.99)  273.95                80
 06/25/2021   22:08:55   (  -0.01,-128.28) (  -0.70,-131.29)  343.52                80
 06/26/2021   21:52:51   (  -0.02,-128.26) (   0.32,-126.76)  171.00                80
 06/28/2021   10:11:59   (   0.01,-128.32) (   0.84,-132.04)  423.67                80
 06/29/2021   09:55:55   (   0.02,-128.30) (  -0.17,-127.51)   90.68                80
 07/01/2021   21:56:25   (  -0.02,-128.16) (  -0.06,-128.27)   12.86                80