Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 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)
 10/12/2021   17:50:49   (  -0.34,-128.08) (  -1.08,-124.80)  373.64                80
 10/14/2021   06:07:10   (   0.34,-128.12) (   0.07,-129.40)  145.61                80
 10/15/2021   05:49:11   (   0.34,-128.14) (   1.16,-124.40)  426.29                80
 10/16/2021   18:05:23   (  -0.34,-128.18) (  -0.17,-128.97)   90.18                80
 10/17/2021   17:47:24   (  -0.34,-128.20) (  -1.26,-123.97)  481.83                80
 10/19/2021   06:03:45   (   0.35,-128.25) (   0.27,-128.57)   37.20                80
 10/21/2021   18:04:38   (  -0.35,-128.30) (  -0.36,-128.14)   17.62                80
 10/24/2021   06:00:20   (   0.34,-128.36) (   0.47,-127.75)   69.42                80
 10/25/2021   18:19:12   (  -0.34,-128.37) (   0.53,-132.32)  448.81                80