Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2019 12 21.  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)
 12/22/2019   17:30:37   (  -0.12,-128.06) (   0.10,-128.93)   99.47                80
 12/23/2019   17:07:19   (  -0.13,-128.09) (  -1.05,-123.96)  471.11                80
 12/25/2019   05:28:59   (   0.11,-128.16) (  -0.01,-128.58)   48.14                80
 12/27/2019   17:27:12   (  -0.10,-128.19) (  -0.09,-128.19)    1.41                80
 12/30/2019   05:22:54   (   0.10,-128.28) (   0.19,-127.83)   50.86                80
 12/31/2019   17:44:26   (  -0.08,-128.28) (   0.81,-132.43)  471.62                80
 01/01/2020   17:21:07   (  -0.09,-128.31) (  -0.29,-127.45)   98.29                80
 01/03/2020   05:42:47   (   0.08,-128.37) (  -0.76,-132.07)  421.18                80
 01/04/2020   05:19:28   (   0.08,-128.39) (   0.39,-127.09)  148.32                80