Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 6 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2021   18:15:18   (  -0.08,-128.49) (   0.58,-131.48)  340.75                80
 06/08/2021   17:57:19   (  -0.08,-128.49) (  -0.50,-126.48)  228.76                80
 06/10/2021   06:16:21   (   0.09,-128.47) (  -0.47,-131.09)  297.10                80
 06/11/2021   05:53:02   (   0.09,-128.47) (   0.61,-126.09)  271.18                80
 06/12/2021   18:11:54   (  -0.09,-128.47) (   0.40,-130.65)  247.95                80
 06/13/2021   17:53:56   (  -0.10,-128.47) (  -0.74,-125.66)  320.66                80
 06/15/2021   06:12:57   (   0.10,-128.45) (  -0.29,-130.26)  205.49                80
 06/16/2021   05:49:37   (   0.10,-128.44) (   0.79,-125.26)  362.15                80
 06/17/2021   18:08:30   (  -0.11,-128.43) (   0.22,-129.82)  158.54                80
 06/18/2021   17:50:31   (  -0.11,-128.42) (  -0.92,-124.83)  409.66                80
 06/20/2021   06:09:33   (   0.11,-128.40) (  -0.10,-129.43)  116.34                80