Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 7 28.  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)
 07/28/2021   03:20:46   (   0.21,-127.75) (   0.69,-125.81)  222.13                80
 07/30/2021   15:41:30   (  -0.20,-127.85) (   0.44,-130.71)  326.88                80
 07/31/2021   15:32:24   (  -0.20,-127.88) (  -0.19,-127.84)    4.49                80
 08/01/2021   15:20:40   (  -0.21,-127.91) (  -0.89,-124.98)  334.79                80
 08/04/2021   03:41:34   (   0.20,-127.97) (  -0.25,-129.92)  222.63                80
 08/05/2021   03:27:08   (   0.21,-127.99) (   0.41,-127.05)  107.16                80
 08/06/2021   03:15:24   (   0.21,-128.01) (   1.13,-124.19)  436.88                80
 08/07/2021   15:47:54   (  -0.20,-128.04) (   0.71,-131.96)  447.47                80
 08/08/2021   15:36:09   (  -0.21,-128.06) (   0.06,-129.09)  117.82                80
 08/09/2021   15:27:04   (  -0.21,-128.08) (  -0.64,-126.23)  211.84                80