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)
 12/06/2021   16:43:02   (  -0.22,-128.05) (   0.65,-132.06)  456.41                80
 12/08/2021   16:12:04   (  -0.21,-127.99) (  -0.95,-124.46)  401.32                80
 12/09/2021   04:24:50   (   0.21,-127.95) (   0.18,-128.18)   25.67                80
 12/11/2021   16:11:20   (  -0.20,-127.90) (  -0.85,-124.78)  353.73                80
 12/12/2021   04:26:53   (   0.20,-127.86) (   0.07,-128.53)   75.96                80
 12/14/2021   16:13:16   (  -0.20,-127.80) (  -0.75,-125.10)  306.30                80
 12/15/2021   04:31:35   (   0.19,-127.76) (  -0.06,-128.87)  126.98                80
 12/17/2021   16:15:10   (  -0.19,-127.69) (  -0.67,-125.42)  258.24                80
 12/18/2021   04:33:39   (   0.18,-127.65) (  -0.15,-129.23)  179.35                80