Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 6 12.  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)
 06/12/2021   16:56:26   (  -0.09,-128.49) (   0.76,-132.41)  445.97                80
 06/13/2021   16:38:26   (  -0.09,-128.49) (  -0.30,-127.42)  120.62                80
 06/15/2021   04:57:26   (   0.10,-128.44) (  -0.70,-132.06)  413.10                80
 06/16/2021   04:34:07   (   0.10,-128.42) (   0.42,-127.09)  152.60                80
 06/17/2021   16:52:58   (  -0.11,-128.45) (   0.61,-131.69)  369.52                80
 06/18/2021   16:34:59   (  -0.11,-128.44) (  -0.51,-126.72)  196.67                80
 06/20/2021   04:53:58   (   0.11,-128.39) (  -0.54,-131.35)  337.03                80
 06/21/2021   04:30:37   (   0.11,-128.37) (   0.52,-126.36)  228.07                80
 06/22/2021   16:49:30   (  -0.11,-128.37) (   0.45,-130.98)  295.92                80
 06/23/2021   16:31:29   (  -0.11,-128.36) (  -0.62,-125.99)  269.30                80
 06/25/2021   04:50:30   (   0.12,-128.30) (  -0.38,-130.63)  265.13                80