Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 1 9.  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)
 01/09/2021   18:00:38   (   0.16,-128.16) (  -0.02,-127.25)  103.19                80
 01/11/2021   06:17:01   (  -0.12,-128.12) (  -0.97,-131.86)  425.98                80
 01/12/2021   05:59:01   (  -0.15,-128.10) (   0.10,-126.85)  141.77                80
 01/13/2021   18:15:14   (   0.12,-128.09) (   0.84,-131.43)  380.33                80
 01/14/2021   17:57:15   (   0.14,-128.07) (  -0.23,-126.43)  187.06                80
 01/16/2021   06:13:37   (  -0.11,-128.03) (  -0.76,-131.04)  342.76                80
 01/17/2021   05:55:38   (  -0.14,-128.01) (   0.31,-126.04)  224.95                80
 01/18/2021   18:11:50   (   0.10,-128.00) (   0.69,-130.60)  296.93                80
 01/19/2021   17:53:51   (   0.12,-127.98) (  -0.39,-125.60)  270.31                80
 01/21/2021   06:10:13   (  -0.09,-127.93) (  -0.60,-130.21)  260.45                80
 01/22/2021   05:52:13   (  -0.11,-127.91) (   0.48,-125.21)  306.76                80