Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 7.  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)
 09/07/2021   03:40:43   (   0.01,-128.22) (  -0.19,-129.06)   96.27                80
 09/08/2021   03:31:38   (  -0.00,-128.21) (   0.48,-126.19)  230.70                80
 09/10/2021   15:49:48   (  -0.05,-128.17) (   0.62,-131.13)  337.40                80
 09/11/2021   15:38:01   (  -0.03,-128.15) (  -0.00,-128.24)   10.67                80
 09/12/2021   15:28:56   (  -0.02,-128.14) (  -0.68,-125.37)  315.83                80
 09/15/2021   03:47:04   (   0.07,-128.11) (  -0.44,-130.30)  250.20                80
 09/16/2021   03:37:58   (   0.06,-128.08) (   0.23,-127.43)   75.47                80
 09/17/2021   03:26:12   (   0.05,-128.06) (   0.85,-124.54)  401.14                80
 09/18/2021   15:56:06   (  -0.12,-128.01) (   0.92,-132.34)  495.99                80
 09/19/2021   15:44:21   (  -0.10,-127.99) (   0.24,-129.48)  169.99                80
 09/20/2021   15:35:14   (  -0.10,-127.97) (  -0.39,-126.60)  155.92                80