Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 11 17.  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) (   0.25,-128.59)   20.01                80
 11/19/2021   18:01:58   (  -0.27,-128.40) (  -0.30,-128.14)   28.80                80
 11/21/2021   06:23:38   (   0.25,-128.36) (  -0.69,-132.75)  498.66                80
 11/22/2021   06:00:19   (   0.26,-128.35) (   0.42,-127.75)   68.80                80
 11/23/2021   18:21:50   (  -0.24,-128.34) (   0.64,-132.30)  451.69                80
 11/24/2021   17:58:31   (  -0.25,-128.32) (  -0.48,-127.31)  115.50                80
 11/26/2021   06:20:10   (   0.23,-128.28) (  -0.57,-131.90)  412.65                80
 11/27/2021   05:56:50   (   0.24,-128.26) (   0.54,-126.90)  154.18                80
 11/28/2021   18:18:22   (  -0.22,-128.24) (   0.51,-131.46)  367.08                80
 11/29/2021   17:55:02   (  -0.23,-128.22) (  -0.60,-126.46)  199.60                80