Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 3 10.  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)
 03/10/2021   15:00:56   (   0.06,-128.40) (  -0.43,-126.31)  239.70                80
 03/13/2021   03:24:38   (  -0.08,-128.35) (  -0.74,-131.27)  333.07                80
 03/14/2021   03:10:15   (  -0.08,-128.36) (  -0.08,-128.41)    5.33                80
 03/15/2021   02:58:31   (  -0.07,-128.37) (   0.58,-125.55)  322.51                80
 03/17/2021   15:21:58   (   0.09,-128.46) (   0.55,-130.46)  227.85                80
 03/18/2021   15:07:35   (   0.08,-128.47) (  -0.10,-127.59)   99.08                80
 03/19/2021   14:55:52   (   0.07,-128.47) (  -0.80,-124.74)  425.80                80
 03/21/2021   03:31:14   (  -0.09,-128.39) (  -1.08,-132.55)  476.27                80
 03/22/2021   03:19:31   (  -0.09,-128.39) (  -0.42,-129.69)  149.65                80
 03/23/2021   03:05:07   (  -0.08,-128.38) (   0.25,-126.83)  176.95                80