Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2019 12 20.  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)
 12/21/2019   05:09:05   (   0.13,-128.04) (   0.92,-124.34)  421.36                80
 12/22/2019   17:30:38   (  -0.12,-128.06) (   0.07,-128.93)   99.29                80
 12/23/2019   17:07:18   (  -0.13,-128.09) (  -1.02,-123.95)  471.28                80
 12/25/2019   05:28:59   (   0.12,-128.16) (   0.02,-128.58)   47.93                80
 12/27/2019   17:24:32   (  -0.11,-128.19) (  -0.12,-128.19)    1.25                80
 12/30/2019   05:22:54   (   0.10,-128.28) (   0.21,-127.84)   51.18                80
 12/31/2019   17:44:25   (  -0.08,-128.29) (   0.84,-132.42)  471.22                80
 01/01/2020   17:21:06   (  -0.09,-128.31) (  -0.25,-127.44)   98.76                80
 01/03/2020   05:42:47   (   0.08,-128.38) (  -0.74,-132.07)  420.77                80