Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 9.  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)
 09/10/2021   15:49:47   (  -0.05,-128.17) (   0.66,-131.12)  337.04                80
 09/11/2021   15:38:02   (  -0.03,-128.16) (  -0.02,-128.25)   10.16                80
 09/12/2021   15:28:55   (  -0.02,-128.14) (  -0.64,-125.36)  316.40                80
 09/15/2021   03:47:04   (   0.07,-128.11) (  -0.42,-130.30)  249.48                80
 09/16/2021   03:37:57   (   0.06,-128.09) (   0.19,-127.42)   76.33                80
 09/17/2021   03:26:12   (   0.05,-128.07) (   0.86,-124.55)  402.05                80
 09/18/2021   15:56:06   (  -0.12,-128.02) (   0.90,-132.35)  494.82                80
 09/19/2021   15:44:21   (  -0.10,-128.00) (   0.21,-129.48)  168.75                80
 09/20/2021   15:35:14   (  -0.10,-127.98) (  -0.41,-126.60)  157.27                80
 09/21/2021   15:23:28   (  -0.08,-127.96) (  -1.04,-123.72)  483.39                80