Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 4 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 04/23/2021   18:02:11   (   0.07,-127.77) (  -0.05,-127.25)   58.86                80
 04/25/2021   06:21:12   (  -0.07,-127.63) (  -0.99,-131.85)  480.37                80
 04/26/2021   05:57:51   (  -0.07,-127.59) (   0.06,-126.84)   84.28                80
 04/27/2021   18:16:44   (   0.07,-127.60) (   0.90,-131.41)  434.07                80
 04/28/2021   17:58:44   (   0.07,-127.56) (  -0.21,-126.42)  130.56                80
 04/30/2021   06:17:44   (  -0.06,-127.41) (  -0.83,-131.01)  409.68                80
 05/01/2021   05:54:24   (  -0.06,-127.36) (   0.22,-126.01)  153.96                80
 05/02/2021   18:13:15   (   0.05,-127.36) (   0.79,-130.57)  366.03                80
 05/03/2021   17:55:16   (   0.05,-127.31) (  -0.32,-125.57)  198.07                80
 05/05/2021   06:14:16   (  -0.05,-127.17) (  -0.73,-130.17)  341.97                80