Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 1 11.  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)
 01/11/2021   06:17:01   (  -0.12,-128.12) (  -0.93,-131.86)  426.08                80
 01/12/2021   05:59:02   (  -0.15,-128.10) (   0.14,-126.86)  141.61                80
 01/13/2021   18:15:14   (   0.12,-128.09) (   0.86,-131.43)  380.65                80
 01/14/2021   17:57:15   (   0.14,-128.07) (  -0.21,-126.43)  186.68                80
 01/16/2021   06:13:37   (  -0.11,-128.02) (  -0.78,-131.04)  343.15                80
 01/17/2021   05:55:38   (  -0.14,-128.01) (   0.30,-126.04)  224.51                80
 01/18/2021   18:11:50   (   0.10,-127.99) (   0.70,-130.60)  297.53                80
 01/19/2021   17:53:51   (   0.12,-127.97) (  -0.43,-125.61)  269.67                80
 01/21/2021   06:10:13   (  -0.09,-127.92) (  -0.62,-130.21)  261.14                80
 01/22/2021   05:52:13   (  -0.11,-127.90) (   0.46,-125.21)  306.05                80
 01/23/2021   18:08:26   (   0.07,-127.88) (   0.48,-129.79)  216.70                80
 01/24/2021   17:50:27   (   0.09,-127.85) (  -0.60,-124.79)  349.75                80