Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 4.  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)
 12/05/2021   16:10:06   (  -0.22,-128.08) (  -1.10,-124.14)  449.49                80
 12/06/2021   04:25:28   (   0.22,-128.04) (   0.28,-127.83)   24.54                80
 12/06/2021   16:43:03   (  -0.22,-128.05) (   0.63,-132.07)  456.34                80
 12/08/2021   16:12:04   (  -0.21,-127.99) (  -0.98,-124.46)  401.47                80
 12/09/2021   04:24:50   (   0.21,-127.95) (   0.14,-128.17)   25.54                80
 12/11/2021   16:11:20   (  -0.20,-127.90) (  -0.89,-124.79)  354.02                80
 12/12/2021   04:29:32   (   0.20,-127.86) (   0.05,-128.52)   75.67                80
 12/14/2021   16:13:15   (  -0.20,-127.80) (  -0.75,-125.10)  306.80                80
 12/15/2021   04:31:35   (   0.19,-127.76) (  -0.06,-128.87)  126.49                80
 12/17/2021   16:15:10   (  -0.19,-127.70) (  -0.69,-125.42)  258.98                80