Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 4 4.  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)
 04/05/2021   17:03:31   (   0.12,-128.30) (   1.02,-132.43)  470.68                80
 04/06/2021   16:45:31   (   0.12,-128.28) (  -0.05,-127.45)   94.40                80
 04/08/2021   05:04:31   (  -0.12,-128.14) (  -0.96,-132.09)  448.12                80
 04/09/2021   04:41:11   (  -0.12,-128.13) (   0.11,-127.10)  116.94                80
 04/10/2021   17:00:02   (   0.12,-128.20) (   0.88,-131.70)  398.77                80
 04/11/2021   16:42:01   (   0.12,-128.18) (  -0.19,-126.72)  166.25                80
 04/13/2021   05:01:02   (  -0.12,-128.04) (  -0.82,-131.36)  376.66                80
 04/14/2021   04:37:41   (  -0.12,-128.02) (   0.25,-126.37)  187.87                80
 04/15/2021   16:56:33   (   0.11,-128.09) (   0.75,-130.98)  329.02                80
 04/16/2021   16:38:32   (   0.11,-128.06) (  -0.33,-125.99)  235.20                80