Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 8 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)
 08/06/2021   03:15:23   (   0.21,-128.00) (   1.10,-124.18)  436.56                80
 08/07/2021   15:47:54   (  -0.19,-128.03) (   0.74,-131.95)  448.46                80
 08/08/2021   15:36:09   (  -0.20,-128.05) (   0.04,-129.09)  118.92                80
 08/09/2021   15:27:05   (  -0.21,-128.07) (  -0.66,-126.23)  210.58                80
 08/12/2021   03:47:56   (   0.19,-128.13) (  -0.51,-131.16)  346.10                80
 08/13/2021   03:36:10   (   0.20,-128.14) (   0.15,-128.29)   17.18                80
 08/14/2021   03:21:45   (   0.21,-128.15) (   0.82,-125.41)  311.62                80
 08/16/2021   15:42:32   (  -0.18,-128.15) (   0.30,-130.34)  248.62                80
 08/17/2021   15:31:30   (  -0.19,-128.16) (  -0.35,-127.46)   79.74                37
 08/18/2021   15:21:42   (  -0.20,-128.17) (  -1.01,-124.59)  407.91                80