Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 9 13.  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)
 09/13/2021   16:31:26   (  -0.14,-128.08) (  -0.02,-128.68)   68.12                80
 09/14/2021   16:13:24   (  -0.11,-128.05) (  -1.05,-123.68)  496.92                80
 09/16/2021   04:29:44   (   0.15,-128.04) (   0.08,-128.33)   33.33                80
 09/18/2021   16:27:54   (  -0.17,-127.94) (  -0.14,-127.95)    3.18                80
 09/21/2021   04:28:54   (   0.19,-127.90) (   0.27,-127.62)   33.24                80
 09/23/2021   16:27:04   (  -0.20,-127.79) (  -0.33,-127.23)   64.14                80
 09/25/2021   04:43:23   (   0.23,-127.79) (  -0.68,-131.87)  465.31                80
 09/26/2021   04:25:23   (   0.21,-127.75) (   0.41,-126.89)   98.70                80