Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 8 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 08/05/2023   10:37:58   (  -0.02,-137.00) (   0.26,-138.22)  139.58                80
 08/06/2023   10:16:33   (  -0.02,-137.00) (  -0.77,-133.69)  377.02                80
 08/07/2023   22:38:27   (   0.02,-136.99) (  -0.42,-138.99)  227.51                80
 08/08/2023   22:22:21   (   0.02,-136.99) (   0.57,-134.45)  288.75                80
 08/10/2023   10:41:27   (  -0.03,-136.97) (   0.59,-139.72)  312.64                80
 08/11/2023   10:25:21   (  -0.03,-136.96) (  -0.40,-135.18)  203.12                80
 08/12/2023   22:44:35   (   0.03,-136.94) (  -0.78,-140.47)  402.82                80
 08/13/2023   22:28:30   (   0.03,-136.93) (   0.27,-135.95)  112.72                80
 08/15/2023   10:47:35   (  -0.04,-136.91) (   0.94,-141.20)  489.43                80
 08/16/2023   10:31:29   (  -0.04,-136.90) (  -0.11,-136.68)   26.01                80