Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 8 3.  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)
 08/03/2021   05:56:43   (   0.08,-127.97) (   0.31,-126.88)  124.09                80
 08/04/2021   18:18:15   (  -0.05,-127.94) (   0.71,-131.44)  398.01                80
 08/05/2021   17:54:56   (  -0.08,-127.97) (  -0.44,-126.45)  173.32                80
 08/07/2021   06:16:36   (   0.05,-128.06) (  -0.64,-131.03)  339.18                80
 08/08/2021   05:53:17   (   0.07,-128.08) (   0.51,-126.05)  231.08                80
 08/09/2021   18:14:50   (  -0.05,-128.04) (   0.50,-130.61)  292.45                80
 08/10/2021   17:51:30   (  -0.07,-128.06) (  -0.60,-125.61)  278.27                80
 08/12/2021   06:13:10   (   0.04,-128.15) (  -0.43,-130.20)  234.31                80
 08/13/2021   05:49:52   (   0.07,-128.16) (   0.72,-125.22)  335.50                80
 08/14/2021   18:11:23   (  -0.04,-128.11) (   0.34,-129.77)  189.29                80
 08/15/2021   17:48:05   (  -0.06,-128.12) (  -0.81,-124.78)  380.71                80