Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 18.  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)
 12/18/2021   04:33:40   (   0.18,-127.75) (  -0.12,-129.24)  168.64                80
 12/20/2021   16:17:05   (  -0.17,-127.85) (  -0.60,-125.75)  238.73                80
 12/21/2021   04:35:44   (   0.16,-127.85) (  -0.24,-129.59)  198.60                80
 12/23/2021   16:18:59   (  -0.15,-127.94) (  -0.55,-126.07)  212.84                80
 12/24/2021   04:37:48   (   0.15,-127.94) (  -0.29,-129.96)  229.54                80
 12/26/2021   16:20:51   (  -0.14,-128.02) (  -0.49,-126.38)  186.48                80
 12/27/2021   04:39:52   (   0.14,-128.02) (  -0.39,-130.31)  261.27                80
 12/29/2021   16:22:43   (  -0.14,-128.09) (  -0.41,-126.69)  159.13                80
 12/30/2021   04:41:57   (   0.13,-128.09) (  -0.42,-130.68)  294.26                80