Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 6 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2021   04:30:38   (   0.11,-128.38) (   0.58,-126.37)  229.57                80
 06/22/2021   16:49:30   (  -0.12,-128.40) (   0.45,-130.97)  292.54                80
 06/23/2021   16:31:29   (  -0.12,-128.39) (  -0.62,-125.99)  273.06                80
 06/25/2021   04:50:30   (   0.12,-128.33) (  -0.38,-130.63)  262.01                80
 06/26/2021   04:27:09   (   0.13,-128.31) (   0.69,-125.65)  302.53                80
 06/27/2021   16:46:01   (  -0.13,-128.31) (   0.28,-130.26)  221.19                80
 06/28/2021   16:28:01   (  -0.14,-128.30) (  -0.79,-125.27)  344.07                80
 06/30/2021   04:47:01   (   0.14,-128.24) (  -0.20,-129.92)  190.34                80
 07/01/2021   04:23:41   (   0.15,-128.22) (   0.87,-124.93)  374.23                80
 07/02/2021   16:42:32   (  -0.15,-128.22) (   0.16,-129.53)  150.21                80
 07/03/2021   16:24:33   (  -0.15,-128.20) (  -0.97,-124.56)  414.92                80