Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 6.  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)
 12/08/2021   16:12:04   (  -0.21,-127.99) (  -0.98,-124.46)  401.26                80
 12/09/2021   04:24:50   (   0.21,-127.95) (   0.14,-128.17)   25.79                80
 12/11/2021   16:11:21   (  -0.20,-127.89) (  -0.87,-124.79)  353.56                80
 12/12/2021   04:29:32   (   0.20,-127.85) (   0.03,-128.52)   76.19                80
 12/14/2021   16:13:16   (  -0.20,-127.80) (  -0.78,-125.11)  306.04                80
 12/15/2021   04:31:36   (   0.19,-127.76) (  -0.04,-128.88)  127.29                80
 12/17/2021   16:15:11   (  -0.19,-127.69) (  -0.69,-125.43)  257.90                80
 12/18/2021   04:33:38   (   0.18,-127.65) (  -0.19,-129.22)  179.77                80
 12/20/2021   16:17:03   (  -0.17,-127.57) (  -0.54,-125.73)  208.86                80