Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 10 12.  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)
 10/12/2021   16:31:01   (  -0.27,-128.08) (  -0.01,-129.35)  144.31                80
 10/13/2021   16:13:00   (  -0.25,-128.10) (  -1.05,-124.36)  426.12                80
 10/15/2021   04:29:19   (   0.27,-128.14) (   0.06,-129.00)   98.43                80
 10/16/2021   04:11:19   (   0.26,-128.16) (   1.16,-124.02)  471.81                80
 10/17/2021   16:27:30   (  -0.28,-128.21) (  -0.20,-128.63)   48.24                80
 10/20/2021   04:28:29   (   0.29,-128.27) (   0.31,-128.29)    3.91                80
 10/22/2021   16:26:38   (  -0.29,-128.32) (  -0.39,-127.92)   46.97                80
 10/24/2021   04:42:58   (   0.30,-128.36) (  -0.59,-132.56)  477.78                80
 10/25/2021   04:24:56   (   0.29,-128.37) (   0.46,-127.57)   91.60                80