Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 7 11.  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)
 07/11/2021   22:08:56   (   0.06,-127.87) (  -0.70,-131.31)  391.53                80
 07/12/2021   21:52:51   (   0.05,-127.83) (   0.26,-126.76)  121.26                80
 07/14/2021   10:11:59   (  -0.07,-127.86) (   0.89,-132.04)  477.30                80
 07/15/2021   09:55:55   (  -0.06,-127.82) (  -0.13,-127.51)   35.13                80
 07/17/2021   21:56:25   (   0.06,-127.64) (  -0.10,-128.28)   73.13                80
 07/18/2021   21:40:21   (   0.06,-127.60) (   0.93,-123.75)  438.84                80
 07/20/2021   09:59:29   (  -0.08,-127.61) (   0.23,-129.02)  161.13                80
 07/21/2021   09:43:24   (  -0.07,-127.56) (  -0.74,-124.48)  350.20                80
 07/22/2021   22:02:40   (   0.10,-127.40) (  -0.44,-129.79)  272.00                80
 07/23/2021   21:46:36   (   0.09,-127.35) (   0.58,-125.26)  239.24                80