Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2021   16:17:05   (  -0.17,-127.85) (  -0.64,-125.75)  238.82                80
 12/21/2021   04:35:44   (   0.16,-127.85) (  -0.20,-129.60)  198.61                80
 12/23/2021   16:18:58   (  -0.15,-127.94) (  -0.56,-126.07)  213.15                80
 12/24/2021   04:37:48   (   0.15,-127.94) (  -0.28,-129.96)  229.33                80
 12/26/2021   16:20:50   (  -0.14,-128.02) (  -0.49,-126.38)  187.14                80
 12/27/2021   04:39:50   (   0.14,-128.02) (  -0.39,-130.31)  260.68                80
 12/29/2021   16:22:40   (  -0.14,-128.09) (  -0.42,-126.68)  160.26                80
 12/30/2021   04:41:53   (   0.13,-128.09) (  -0.46,-130.66)  293.18                80
 01/01/2022   16:24:31   (  -0.12,-128.15) (  -0.39,-126.99)  131.85                80
 01/02/2022   04:43:55   (   0.12,-128.14) (  -0.54,-131.01)  327.19                80