Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2026 8 26.  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)
 08/27/2026   22:18:58   (  -0.01,-137.00) (   0.88,-133.19)  435.39                80
 08/29/2026   10:40:45   (   0.00,-136.99) (   0.35,-138.45)  166.49                80
 08/30/2026   10:19:21   (   0.00,-136.99) (  -0.67,-133.92)  349.20                80
 08/31/2026   22:41:17   (  -0.01,-136.98) (  -0.52,-139.23)  256.37                80
 09/01/2026   22:25:12   (  -0.01,-136.98) (   0.49,-134.70)  258.86                80
 09/03/2026   10:47:01   (   0.01,-136.95) (   0.68,-139.98)  344.60                80
 09/04/2026   10:25:36   (   0.02,-136.94) (  -0.34,-135.45)  169.91                80
 09/05/2026   22:47:32   (  -0.02,-136.91) (  -0.90,-140.75)  437.49                80
 09/06/2026   22:31:27   (  -0.02,-136.89) (   0.12,-136.22)   76.69                80
 09/09/2026   10:34:31   (   0.03,-136.84) (   0.04,-136.97)   14.06                80