Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 7 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)
 07/19/2021   04:53:43   (   0.16,-127.64) (  -0.83,-131.99)  495.95                80
 07/20/2021   04:30:23   (   0.17,-127.59) (   0.30,-127.01)   65.87                80
 07/21/2021   16:49:13   (  -0.16,-127.53) (   0.76,-131.61)  464.71                80
 07/22/2021   16:31:14   (  -0.17,-127.49) (  -0.38,-126.63)   97.41                80
 07/24/2021   04:50:13   (   0.16,-127.41) (  -0.68,-131.27)  438.61                80
 07/25/2021   04:26:53   (   0.18,-127.36) (   0.40,-126.28)  122.64                80
 07/26/2021   16:45:44   (  -0.17,-127.29) (   0.60,-130.89)  408.92                80
 07/27/2021   16:27:44   (  -0.18,-127.25) (  -0.47,-125.90)  153.14                80
 07/29/2021   04:46:43   (   0.17,-127.18) (  -0.58,-130.53)  382.00                80
 07/30/2021   04:23:22   (   0.18,-127.13) (   0.50,-125.55)  179.24                80
 07/31/2021   16:42:14   (  -0.16,-127.05) (   0.50,-130.16)  353.25                80