Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 23.  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)
 10/24/2021   06:02:59   (   0.34,-128.33) (   0.45,-127.75)   65.78                80
 10/25/2021   18:19:12   (  -0.34,-128.36) (   0.54,-132.31)  450.95                80
 10/26/2021   18:01:12   (  -0.33,-128.37) (  -0.55,-127.32)  119.55                80
 10/28/2021   06:20:12   (   0.33,-128.37) (  -0.49,-131.91)  403.39                80
 10/29/2021   05:56:54   (   0.33,-128.38) (   0.67,-126.93)  166.71                80
 10/30/2021   18:15:45   (  -0.32,-128.40) (   0.39,-131.48)  351.05                80
 10/31/2021   17:57:47   (  -0.32,-128.41) (  -0.77,-126.49)  218.89                80
 11/02/2021   06:16:47   (   0.32,-128.41) (  -0.26,-131.09)  304.56                80
 11/03/2021   05:53:28   (   0.32,-128.42) (   0.85,-126.09)  264.93                80
 11/04/2021   18:12:20   (  -0.32,-128.43) (   0.16,-130.66)  253.89                80
 11/05/2021   17:54:20   (  -0.32,-128.43) (  -0.94,-125.66)  315.23                80