Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2019 9 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)
 09/19/2019   05:32:34   (   0.21,-127.96) (   0.10,-128.59)   70.31                80
 09/20/2019   05:14:35   (   0.19,-127.93) (   1.17,-123.60)  494.18                80
 09/21/2019   17:30:48   (  -0.22,-127.94) (  -0.17,-128.19)   28.75                80
 09/24/2019   05:29:10   (   0.22,-127.79) (   0.21,-127.83)    4.20                80
 09/26/2019   17:30:04   (  -0.24,-127.74) (  -0.28,-127.43)   34.85                80
 09/29/2019   05:28:27   (   0.25,-127.59) (   0.39,-127.08)   58.74                80
 09/30/2019   17:44:40   (  -0.27,-127.57) (   0.61,-131.68)  466.89                80
 10/01/2019   17:26:41   (  -0.25,-127.53) (  -0.46,-126.69)   96.47                80