Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 7 12.  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)
 07/12/2021   21:52:51   (   0.05,-127.83) (   0.29,-126.77)  121.31                80
 07/14/2021   10:11:59   (  -0.07,-127.86) (   0.87,-132.05)  477.13                80
 07/15/2021   09:55:55   (  -0.06,-127.82) (  -0.16,-127.52)   35.48                80
 07/17/2021   21:56:26   (   0.07,-127.64) (  -0.07,-128.28)   72.84                80
 07/18/2021   21:40:20   (   0.06,-127.60) (   0.90,-123.74)  439.16                80
 07/20/2021   09:59:29   (  -0.08,-127.61) (   0.26,-129.02)  160.73                80
 07/21/2021   09:43:24   (  -0.07,-127.56) (  -0.77,-124.49)  350.65                80
 07/22/2021   22:02:40   (   0.10,-127.41) (  -0.41,-129.80)  271.54                80
 07/23/2021   21:46:35   (   0.09,-127.36) (   0.55,-125.25)  239.75                80
 07/25/2021   10:05:43   (  -0.11,-127.37) (   0.60,-130.53)  360.61                80