Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21 TLE Epoch: 2026 1 28. 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) 01/30/2026 22:35:35 ( -0.04,-136.99) ( -0.18,-137.73) 83.13 80 01/31/2026 22:19:31 ( -0.04,-136.99) ( 0.82,-133.19) 433.07 80 02/02/2026 10:41:19 ( 0.04,-136.98) ( 0.39,-138.46) 168.08 80 02/03/2026 10:19:55 ( 0.04,-136.98) ( -0.61,-133.92) 347.95 80 02/04/2026 22:41:52 ( -0.05,-136.98) ( -0.52,-139.23) 256.58 80 02/05/2026 22:25:47 ( -0.05,-136.97) ( 0.48,-134.70) 259.44 80 02/07/2026 10:47:36 ( 0.05,-136.96) ( 0.71,-139.96) 341.93 80 02/08/2026 10:26:11 ( 0.05,-136.95) ( -0.30,-135.43) 173.59 80 02/09/2026 22:48:08 ( -0.06,-136.93) ( -0.89,-140.73) 432.18 80 02/10/2026 22:32:03 ( -0.06,-136.92) ( 0.12,-136.20) 83.01 80