Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 6 19.  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)
 06/20/2021   04:53:58   (   0.11,-128.40) (  -0.53,-131.35)  335.80                80
 06/21/2021   04:30:38   (   0.11,-128.38) (   0.53,-126.36)  229.62                80
 06/22/2021   16:49:30   (  -0.12,-128.40) (   0.43,-130.98)  292.66                80
 06/23/2021   16:31:29   (  -0.12,-128.39) (  -0.63,-125.99)  272.90                80
 06/25/2021   04:50:30   (   0.12,-128.33) (  -0.36,-130.63)  262.08                80
 06/26/2021   04:27:09   (   0.13,-128.31) (   0.70,-125.65)  302.42                80
 06/27/2021   16:46:02   (  -0.13,-128.31) (   0.27,-130.26)  221.48                80
 06/28/2021   16:28:01   (  -0.14,-128.30) (  -0.80,-125.28)  343.77                80
 06/30/2021   04:47:00   (   0.14,-128.24) (  -0.25,-129.91)  190.57                80
 07/01/2021   04:23:41   (   0.14,-128.22) (   0.88,-124.94)  373.98                80
 07/02/2021   16:42:32   (  -0.15,-128.22) (   0.15,-129.54)  150.64                80
 07/03/2021   16:24:33   (  -0.15,-128.20) (  -0.98,-124.57)  414.46                80