Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 7 25.  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)
 07/26/2021   03:46:56   (   0.20,-127.69) (  -0.70,-131.54)  439.78                80
 07/27/2021   03:35:11   (   0.20,-127.72) (   0.01,-128.68)  108.78                80
 07/28/2021   03:20:46   (   0.21,-127.75) (   0.66,-125.80)  222.24                80
 07/30/2021   15:41:29   (  -0.20,-127.85) (   0.47,-130.71)  326.18                80
 07/31/2021   15:29:45   (  -0.21,-127.89) (  -0.23,-127.85)    5.06                80
 08/01/2021   15:20:41   (  -0.21,-127.92) (  -0.92,-124.98)  335.86                80
 08/04/2021   03:41:33   (   0.20,-127.98) (  -0.28,-129.91)  221.27                80
 08/05/2021   03:27:09   (   0.21,-128.01) (   0.44,-127.06)  108.70                80
 08/06/2021   03:15:23   (   0.22,-128.03) (   1.10,-124.18)  438.57                80
 08/07/2021   15:47:55   (  -0.20,-128.06) (   0.68,-131.97)  445.49                80