Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 10 15.  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)
 10/15/2021   04:29:19   (   0.27,-128.14) (   0.08,-129.00)   98.72                80
 10/16/2021   04:11:19   (   0.26,-128.16) (   1.18,-124.02)  471.38                80
 10/17/2021   16:27:29   (  -0.28,-128.20) (  -0.16,-128.62)   48.60                80
 10/20/2021   04:25:48   (   0.29,-128.26) (   0.27,-128.29)    3.24                80
 10/22/2021   16:26:38   (  -0.29,-128.32) (  -0.36,-127.91)   46.22                80
 10/24/2021   04:42:57   (   0.30,-128.34) (  -0.63,-132.55)  479.13                80
 10/25/2021   04:24:57   (   0.29,-128.36) (   0.48,-127.57)   90.15                80
 10/26/2021   16:41:07   (  -0.30,-128.38) (   0.54,-132.17)  431.68                80
 10/27/2021   16:23:06   (  -0.29,-128.40) (  -0.56,-127.19)  137.34                80