Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 10.  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)
 12/11/2021   16:11:21   (  -0.20,-127.89) (  -0.90,-124.79)  353.29                80
 12/12/2021   04:26:53   (   0.20,-127.85) (   0.06,-128.52)   77.12                80
 12/14/2021   16:13:17   (  -0.19,-127.79) (  -0.79,-125.11)  304.99                80
 12/15/2021   04:31:36   (   0.19,-127.74) (  -0.04,-128.88)  129.06                80
 12/17/2021   16:15:11   (  -0.18,-127.68) (  -0.67,-125.43)  255.99                80
 12/18/2021   04:33:40   (   0.18,-127.63) (  -0.16,-129.23)  182.38                80
 12/20/2021   16:17:05   (  -0.17,-127.55) (  -0.54,-125.74)  206.03                80
 12/21/2021   04:35:44   (   0.16,-127.50) (  -0.29,-129.58)  237.17                80
 12/23/2021   16:18:58   (  -0.15,-127.41) (  -0.45,-126.05)  155.29                80
 12/24/2021   04:37:47   (   0.15,-127.36) (  -0.44,-129.93)  293.05                80