Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 6 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 06/20/2021   17:31:19   (   0.04,-137.19) (   0.93,-141.30)  468.01                80
 06/21/2021   17:13:18   (   0.04,-137.18) (  -0.13,-136.32)   98.25                80
 06/23/2021   05:29:38   (  -0.04,-137.16) (  -0.86,-140.96)  432.66                80
 06/24/2021   05:11:38   (  -0.04,-137.15) (   0.20,-135.98)  132.94                80
 06/25/2021   17:27:50   (   0.03,-137.13) (   0.77,-140.59)  392.84                80
 06/26/2021   17:09:50   (   0.03,-137.12) (  -0.30,-135.60)  172.48                80
 06/28/2021   05:28:50   (  -0.03,-137.09) (  -0.69,-140.25)  359.25                80
 06/29/2021   05:05:30   (  -0.02,-137.07) (   0.37,-135.26)  206.01                80
 06/30/2021   17:24:21   (   0.02,-137.06) (   0.65,-139.86)  320.03                80
 07/01/2021   17:06:21   (   0.02,-137.04) (  -0.48,-134.89)  245.19                80
 07/03/2021   05:25:21   (  -0.02,-137.00) (  -0.57,-139.52)  286.88                80
 07/04/2021   05:02:00   (  -0.02,-136.98) (   0.50,-134.54)  277.92                80