Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 7.  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) (  -0.99,-124.46)  401.24                80
 12/09/2021   04:24:50   (   0.21,-127.95) (   0.15,-128.17)   25.87                80
 12/11/2021   16:11:21   (  -0.20,-127.89) (  -0.87,-124.79)  353.35                80
 12/12/2021   04:29:32   (   0.20,-127.85) (   0.03,-128.52)   76.52                80
 12/14/2021   16:13:16   (  -0.20,-127.80) (  -0.77,-125.11)  305.60                80
 12/15/2021   04:31:36   (   0.19,-127.75) (  -0.05,-128.88)  127.85                80
 12/17/2021   16:15:11   (  -0.19,-127.69) (  -0.67,-125.42)  257.20                80
 12/18/2021   04:33:40   (   0.18,-127.64) (  -0.15,-129.23)  180.59                80
 12/20/2021   16:17:04   (  -0.17,-127.56) (  -0.56,-125.74)  207.86                80
 12/21/2021   04:35:43   (   0.17,-127.52) (  -0.27,-129.58)  234.74                80