Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 16.  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)
 10/16/2021   18:05:23   (  -0.34,-128.17) (  -0.19,-128.97)   90.43                80
 10/17/2021   17:47:24   (  -0.34,-128.20) (  -1.28,-123.97)  481.29                80
 10/19/2021   06:06:25   (   0.34,-128.23) (   0.28,-128.58)   39.00                80
 10/21/2021   18:04:38   (  -0.34,-128.28) (  -0.38,-128.15)   15.66                80
 10/24/2021   06:03:00   (   0.34,-128.33) (   0.49,-127.75)   66.00                80
 10/25/2021   18:19:11   (  -0.34,-128.35) (   0.57,-132.31)  452.07                80
 10/26/2021   18:01:13   (  -0.33,-128.36) (  -0.59,-127.32)  118.52                80
 10/28/2021   06:20:13   (   0.33,-128.38) (  -0.45,-131.92)  402.88                80
 10/29/2021   05:56:54   (   0.33,-128.39) (   0.65,-126.92)  167.23                80