Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2020 12 18.  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)
 12/18/2020   04:58:39   (  -0.28,-128.24) (  -0.36,-128.75)   57.31                80
 12/20/2020   16:56:51   (   0.28,-128.23) (   0.32,-128.36)   15.05                80
 12/23/2020   04:57:53   (  -0.28,-128.28) (  -0.23,-128.02)   28.87                80
 12/24/2020   17:14:05   (   0.26,-128.26) (   1.22,-132.63)  497.34                80
 12/25/2020   16:56:06   (   0.27,-128.26) (   0.13,-127.65)   70.28                80
 12/27/2020   05:12:27   (  -0.26,-128.29) (  -1.13,-132.29)  455.23                80
 12/28/2020   04:54:28   (  -0.27,-128.29) (  -0.04,-127.31)  112.26                80
 12/29/2020   17:10:40   (   0.25,-128.27) (   1.03,-131.92)  415.04                80
 12/30/2020   16:52:39   (   0.27,-128.26) (  -0.01,-126.92)  151.85                80