Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2021   03:47:03   (   0.07,-128.06) (  -0.45,-130.29)  254.52                80
 09/16/2021   03:37:58   (   0.06,-128.04) (   0.22,-127.42)   70.43                80
 09/17/2021   03:26:12   (   0.05,-128.01) (   0.83,-124.54)  395.38                80
 09/19/2021   15:44:20   (  -0.10,-127.92) (   0.25,-129.47)  177.61                80
 09/20/2021   15:35:14   (  -0.10,-127.89) (  -0.37,-126.59)  147.59                80
 09/21/2021   15:23:28   (  -0.08,-127.86) (  -1.06,-123.72)  472.86                80
 09/23/2021   03:53:24   (   0.14,-127.84) (  -0.69,-131.53)  420.33                80
 09/24/2021   03:41:37   (   0.13,-127.81) (  -0.08,-128.65)   95.52                80
 09/25/2021   03:32:32   (   0.12,-127.78) (   0.60,-125.78)  229.09                80