Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 14.  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)
 12/15/2021   04:31:36   (   0.19,-127.73) (  -0.08,-128.87)  129.85                80
 12/17/2021   16:15:11   (  -0.18,-127.67) (  -0.69,-125.43)  255.45                80
 12/18/2021   04:33:39   (   0.18,-127.61) (  -0.19,-129.22)  183.78                80
 12/20/2021   16:17:05   (  -0.17,-127.54) (  -0.57,-125.74)  204.90                80
 12/21/2021   04:35:43   (   0.16,-127.48) (  -0.32,-129.57)  239.16                80
 12/23/2021   16:18:58   (  -0.15,-127.40) (  -0.44,-126.05)  153.63                80
 12/24/2021   04:37:47   (   0.15,-127.34) (  -0.40,-129.94)  295.55                80
 12/26/2021   16:20:50   (  -0.14,-127.25) (  -0.34,-126.35)  101.83                80
 12/27/2021   04:39:51   (   0.14,-127.19) (  -0.54,-130.29)  352.75                80