Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 10 10.  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)
 10/10/2021   04:32:51   (   0.27,-128.01) (  -0.08,-129.73)  195.15                80
 10/11/2021   04:14:50   (   0.25,-128.03) (   0.96,-124.73)  375.51                80
 10/12/2021   16:31:01   (  -0.27,-128.08) (   0.01,-129.35)  144.28                80
 10/13/2021   16:13:00   (  -0.25,-128.10) (  -1.10,-124.37)  426.15                80
 10/15/2021   04:29:20   (   0.27,-128.14) (   0.10,-129.01)   98.29                80
 10/16/2021   04:11:18   (   0.26,-128.17) (   1.15,-124.02)  471.96                80
 10/17/2021   16:27:30   (  -0.28,-128.21) (  -0.18,-128.63)   48.13                80
 10/20/2021   04:28:28   (   0.29,-128.27) (   0.29,-128.29)    2.28                80
 10/22/2021   16:26:38   (  -0.29,-128.33) (  -0.37,-127.91)   47.19                80