Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 10 18.  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)
 10/18/2021   04:00:35   (   0.25,-128.21) (  -0.71,-132.36)  474.37                80
 10/19/2021   03:48:50   (   0.25,-128.23) (  -0.02,-129.49)  143.76                80
 10/20/2021   03:39:43   (   0.24,-128.25) (   0.61,-126.62)  186.80                80
 10/22/2021   15:57:43   (  -0.26,-128.31) (   0.48,-131.51)  364.83                80
 10/23/2021   15:45:56   (  -0.25,-128.33) (  -0.17,-128.63)   34.55                80
 10/24/2021   15:36:50   (  -0.24,-128.35) (  -0.82,-125.76)  295.51                80
 10/27/2021   03:55:06   (   0.26,-128.37) (  -0.29,-130.71)  267.47                80
 10/28/2021   03:45:59   (   0.26,-128.38) (   0.35,-127.84)   62.01                80
 10/29/2021   03:34:14   (   0.25,-128.39) (   1.06,-124.97)  391.24                80
 10/30/2021   16:03:58   (  -0.27,-128.42) (   0.71,-132.73)  492.11                80
 10/31/2021   15:52:12   (  -0.27,-128.43) (   0.06,-129.85)  162.91                80