Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 3 16.  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)
 03/17/2021   15:21:58   (   0.09,-128.45) (   0.56,-130.46)  228.87                80
 03/18/2021   15:07:34   (   0.09,-128.45) (  -0.09,-127.59)   97.82                80
 03/19/2021   14:55:52   (   0.08,-128.45) (  -0.79,-124.74)  424.29                80
 03/21/2021   03:31:14   (  -0.10,-128.37) (  -1.09,-132.55)  478.19                80
 03/22/2021   03:19:31   (  -0.09,-128.36) (  -0.43,-129.69)  151.83                80
 03/23/2021   03:05:07   (  -0.09,-128.36) (   0.24,-126.82)  174.51                80
 03/25/2021   15:28:36   (   0.10,-128.42) (   0.88,-131.75)  379.78                80
 03/26/2021   15:16:53   (   0.10,-128.41) (   0.23,-128.88)   54.11                80
 03/27/2021   15:02:30   (   0.10,-128.40) (  -0.48,-126.03)  271.52                80