Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 6.  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)
 09/06/2021   03:55:24   (   0.02,-128.23) (   0.00,-132.13)  434.21                80
 09/07/2021   03:40:43   (   0.01,-128.22) (  -0.21,-129.06)   96.38                80
 09/08/2021   03:31:38   (  -0.00,-128.21) (   0.46,-126.19)  230.54                80
 09/10/2021   15:49:47   (  -0.05,-128.16) (   0.63,-131.12)  337.74                80
 09/11/2021   15:38:01   (  -0.03,-128.15) (   0.02,-128.24)   11.48                80
 09/12/2021   15:28:56   (  -0.02,-128.13) (  -0.66,-125.37)  315.35                80
 09/15/2021   03:47:03   (   0.07,-128.10) (  -0.46,-130.29)  250.82                80
 09/16/2021   03:37:58   (   0.06,-128.08) (   0.21,-127.42)   74.78                80
 09/17/2021   03:26:12   (   0.05,-128.06) (   0.88,-124.55)  400.39                80
 09/18/2021   15:56:07   (  -0.12,-128.00) (   0.89,-132.35)  496.85                80
 09/19/2021   15:44:20   (  -0.10,-127.98) (   0.26,-129.47)  170.95                80