Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 18.  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)
 09/19/2021   15:44:20   (  -0.10,-127.91) (   0.25,-129.47)  177.80                80
 09/20/2021   15:35:14   (  -0.10,-127.88) (  -0.38,-126.59)  147.26                80
 09/21/2021   15:23:28   (  -0.08,-127.86) (  -1.06,-123.72)  472.42                80
 09/23/2021   03:53:23   (   0.14,-127.83) (  -0.74,-131.52)  421.59                80
 09/24/2021   03:41:37   (   0.13,-127.80) (  -0.07,-128.65)   96.87                80
 09/25/2021   03:32:32   (   0.12,-127.77) (   0.61,-125.78)  227.64                80
 09/27/2021   15:50:38   (  -0.16,-127.65) (   0.54,-130.69)  346.59                80
 09/28/2021   15:38:51   (  -0.15,-127.61) (  -0.10,-127.81)   22.31                80
 09/29/2021   15:29:45   (  -0.14,-127.58) (  -0.73,-124.93)  301.69                80