Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 4 5.  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   17:03:32   (   0.12,-128.30) (   1.00,-132.44)  470.75                80
 04/06/2021   16:45:31   (   0.12,-128.28) (  -0.07,-127.45)   94.28                80
 04/08/2021   05:04:30   (  -0.12,-128.14) (  -1.00,-132.08)  448.31                80
 04/09/2021   04:41:11   (  -0.12,-128.12) (   0.13,-127.10)  116.73                80
 04/10/2021   17:00:02   (   0.12,-128.20) (   0.87,-131.71)  399.11                80
 04/11/2021   16:42:02   (   0.12,-128.18) (  -0.20,-126.72)  165.86                80
 04/13/2021   05:01:01   (  -0.12,-128.04) (  -0.87,-131.35)  377.14                80
 04/14/2021   04:37:42   (  -0.12,-128.02) (   0.26,-126.38)  187.35                80
 04/15/2021   16:56:33   (   0.11,-128.08) (   0.73,-130.98)  329.64                80
 04/16/2021   16:38:32   (   0.11,-128.05) (  -0.34,-125.99)  234.52                80
 04/18/2021   04:57:32   (  -0.10,-127.91) (  -0.72,-130.62)  309.67                80