Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 1 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)
 01/16/2021   06:13:37   (  -0.11,-128.02) (  -0.79,-131.03)  343.92                80
 01/17/2021   05:55:37   (  -0.14,-128.00) (   0.29,-126.03)  223.48                80
 01/18/2021   18:11:50   (   0.10,-127.98) (   0.71,-130.60)  298.99                80
 01/19/2021   17:53:51   (   0.12,-127.96) (  -0.42,-125.61)  267.95                80
 01/21/2021   06:10:12   (  -0.08,-127.90) (  -0.63,-130.21)  263.30                80
 01/22/2021   05:52:14   (  -0.11,-127.88) (   0.51,-125.22)  303.62                80
 01/23/2021   18:08:26   (   0.07,-127.86) (   0.49,-129.79)  219.52                80
 01/24/2021   17:50:27   (   0.09,-127.83) (  -0.59,-124.78)  346.65                80
 01/26/2021   06:06:49   (  -0.05,-127.76) (  -0.40,-129.39)  186.22                80
 01/27/2021   05:48:50   (  -0.08,-127.72) (   0.68,-124.39)  379.93                80
 01/28/2021   18:05:02   (   0.04,-127.69) (   0.32,-128.96)  144.04                80
 01/29/2021   17:47:02   (   0.07,-127.66) (  -0.76,-123.96)  421.53                80