Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 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)
 10/15/2021   05:49:11   (   0.33,-128.14) (   1.17,-124.40)  425.94                80
 10/16/2021   18:05:23   (  -0.34,-128.18) (  -0.18,-128.97)   90.33                80
 10/17/2021   17:47:24   (  -0.34,-128.20) (  -1.27,-123.97)  481.58                80
 10/19/2021   06:03:45   (   0.34,-128.24) (   0.27,-128.58)   38.00                80
 10/21/2021   18:04:38   (  -0.35,-128.29) (  -0.37,-128.14)   16.84                80
 10/24/2021   06:01:59   (   0.34,-128.35) (   0.48,-127.75)   68.03                19
 10/25/2021   18:19:12   (  -0.34,-128.36) (   0.52,-132.32)  450.00                80
 10/26/2021   18:01:13   (  -0.33,-128.38) (  -0.57,-127.32)  120.78                80
 10/28/2021   06:20:13   (   0.33,-128.41) (  -0.47,-131.91)  399.94                80