Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 11 12.  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)
 11/12/2021   06:09:53   (   0.28,-128.44) (   0.08,-129.42)  111.56                80
 11/13/2021   05:46:34   (   0.29,-128.44) (   1.19,-124.43)  457.10                80
 11/14/2021   18:08:06   (  -0.28,-128.44) (  -0.19,-128.99)   62.16                80
 11/17/2021   06:06:26   (   0.27,-128.42) (   0.23,-128.58)   18.73                80
 11/19/2021   18:01:59   (  -0.27,-128.41) (  -0.34,-128.15)   29.55                80
 11/21/2021   06:23:38   (   0.26,-128.38) (  -0.71,-132.74)  496.45                80
 11/22/2021   06:00:18   (   0.26,-128.37) (   0.40,-127.75)   71.17                80
 11/23/2021   18:21:50   (  -0.24,-128.36) (   0.66,-132.30)  449.94                80
 11/24/2021   17:58:30   (  -0.25,-128.34) (  -0.45,-127.31)  117.51                80