Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 6 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)
 06/18/2021   16:34:58   (  -0.11,-128.45) (  -0.49,-126.71)  198.30                80
 06/20/2021   04:53:59   (   0.11,-128.40) (  -0.51,-131.35)  335.77                80
 06/21/2021   04:30:38   (   0.11,-128.38) (   0.56,-126.37)  229.61                80
 06/22/2021   16:49:29   (  -0.12,-128.40) (   0.47,-130.97)  292.95                80
 06/23/2021   16:31:30   (  -0.12,-128.39) (  -0.66,-126.00)  272.57                80
 06/25/2021   04:50:29   (   0.12,-128.33) (  -0.40,-130.63)  262.27                80
 06/26/2021   04:27:10   (   0.13,-128.30) (   0.73,-125.65)  302.20                80
 06/27/2021   16:46:01   (  -0.13,-128.31) (   0.30,-130.26)  221.98                80
 06/28/2021   16:28:02   (  -0.14,-128.29) (  -0.83,-125.28)  343.22                80
 06/30/2021   04:47:01   (   0.14,-128.24) (  -0.22,-129.91)  190.97                80
 07/01/2021   04:23:40   (   0.14,-128.21) (   0.84,-124.93)  373.52                80