Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 4.  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)
 07/04/2021   06:19:56   (   0.12,-128.16) (  -0.73,-131.90)  426.92                80
 07/05/2021   05:56:37   (   0.13,-128.13) (   0.41,-126.91)  138.73                80
 07/06/2021   18:15:30   (  -0.12,-128.07) (   0.61,-131.47)  386.55                80
 07/07/2021   17:57:30   (  -0.12,-128.05) (  -0.47,-126.47)  179.38                80
 07/09/2021   06:16:30   (   0.12,-128.01) (  -0.57,-131.06)  347.86                80
 07/10/2021   05:53:12   (   0.13,-127.97) (   0.58,-126.08)  216.90                80
 07/11/2021   18:12:03   (  -0.12,-127.90) (   0.51,-130.62)  310.29                80
 07/12/2021   17:54:05   (  -0.13,-127.87) (  -0.64,-125.63)  254.90                80
 07/14/2021   06:13:05   (   0.13,-127.83) (  -0.39,-130.23)  272.43                80
 07/15/2021   05:49:46   (   0.14,-127.79) (   0.70,-125.23)  291.86                80
 07/16/2021   18:08:38   (  -0.13,-127.71) (   0.34,-129.79)  236.60                80
 07/17/2021   17:50:38   (  -0.14,-127.67) (  -0.75,-124.79)  328.13                80