Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 11 15.  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)
 11/17/2021   06:06:26   (   0.27,-128.41) (   0.24,-128.58)   19.63                80
 11/19/2021   18:01:59   (  -0.27,-128.40) (  -0.35,-128.16)   28.97                80
 11/21/2021   06:23:38   (   0.25,-128.37) (  -0.70,-132.74)  497.98                80
 11/22/2021   06:00:19   (   0.26,-128.36) (   0.41,-127.75)   69.51                80
 11/23/2021   18:21:50   (  -0.24,-128.34) (   0.65,-132.30)  451.24                80
 11/24/2021   17:58:30   (  -0.25,-128.33) (  -0.46,-127.31)  116.02                80
 11/26/2021   06:20:10   (   0.23,-128.29) (  -0.59,-131.90)  411.58                80
 11/27/2021   05:56:50   (   0.24,-128.27) (   0.53,-126.90)  155.34                80
 11/28/2021   18:18:23   (  -0.22,-128.25) (   0.47,-131.47)  366.25                80