Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 3.  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)
 12/03/2021   04:23:27   (   0.24,-128.13) (   0.39,-127.49)   73.49                80
 12/03/2021   16:41:03   (  -0.23,-128.14) (   0.56,-131.72)  408.33                80
 12/05/2021   16:10:06   (  -0.23,-128.08) (  -1.10,-124.14)  449.49                80
 12/06/2021   04:25:28   (   0.22,-128.04) (   0.28,-127.83)   24.43                80
 12/06/2021   16:43:03   (  -0.22,-128.05) (   0.62,-132.07)  456.37                80
 12/08/2021   16:12:04   (  -0.21,-127.99) (  -0.98,-124.46)  401.39                80
 12/09/2021   04:24:50   (   0.21,-127.95) (   0.14,-128.17)   25.73                80
 12/11/2021   16:11:21   (  -0.20,-127.90) (  -0.88,-124.79)  353.85                80
 12/12/2021   04:29:32   (   0.20,-127.86) (   0.05,-128.52)   75.94                80
 12/14/2021   16:13:16   (  -0.20,-127.80) (  -0.80,-125.11)  306.55                80
 12/15/2021   04:31:35   (   0.19,-127.76) (  -0.07,-128.87)  126.86                80