Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 8 24.  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)
 08/24/2021   18:01:51   (   0.01,-128.23) (  -0.05,-128.10)   16.55                80
 08/26/2021   06:23:30   (  -0.04,-128.31) (  -1.05,-132.67)  497.66                80
 08/27/2021   06:00:12   (  -0.02,-128.32) (   0.11,-127.69)   71.19                80
 08/28/2021   18:21:43   (   0.06,-128.25) (   0.93,-132.24)  455.01                80
 08/29/2021   17:58:24   (   0.03,-128.25) (  -0.18,-127.25)  113.96                80
 08/31/2021   06:20:04   (  -0.07,-128.33) (  -0.87,-131.84)  400.61                80
 09/01/2021   05:56:46   (  -0.04,-128.32) (   0.30,-126.85)  167.50                80
 09/02/2021   18:18:16   (   0.08,-128.24) (   0.80,-131.40)  360.19                80
 09/03/2021   17:54:58   (   0.06,-128.23) (  -0.37,-126.41)  207.96                80
 09/05/2021   06:16:38   (  -0.09,-128.30) (  -0.68,-131.00)  307.37                80
 09/06/2021   05:53:18   (  -0.06,-128.29) (   0.43,-126.01)  260.15                80