Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 31.  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)
 07/31/2021   18:00:04   (  -0.09,-127.84) (  -0.19,-127.27)   64.71                23
 08/02/2021   06:20:01   (   0.06,-127.95) (  -0.83,-131.86)  447.00                80
 08/03/2021   05:56:43   (   0.08,-127.97) (   0.32,-126.88)  124.04                80
 08/04/2021   18:18:15   (  -0.06,-127.94) (   0.70,-131.44)  398.06                80
 08/05/2021   17:54:56   (  -0.08,-127.97) (  -0.40,-126.44)  173.33                80
 08/07/2021   06:16:36   (   0.05,-128.06) (  -0.63,-131.03)  338.95                80
 08/08/2021   05:53:18   (   0.08,-128.08) (   0.53,-126.05)  231.33                80
 08/09/2021   18:14:49   (  -0.05,-128.04) (   0.54,-130.60)  292.25                80
 08/10/2021   17:51:30   (  -0.08,-128.06) (  -0.61,-125.61)  278.53                80
 08/12/2021   06:13:11   (   0.05,-128.16) (  -0.41,-130.21)  233.79                80
 08/13/2021   05:49:52   (   0.07,-128.17) (   0.74,-125.22)  336.05                80