Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21 TLE Epoch: 2025 8 20. 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) 08/21/2025 10:31:38 ( -0.02,-136.99) ( 0.00,-136.98) 2.33 80 08/23/2025 22:34:50 ( 0.02,-137.00) ( -0.12,-137.76) 85.92 80 08/24/2025 22:18:45 ( 0.02,-137.01) ( 0.85,-133.22) 430.81 80 08/26/2025 10:40:33 ( -0.02,-136.99) ( 0.30,-138.50) 171.12 80 08/27/2025 10:19:07 ( -0.02,-136.99) ( -0.67,-133.96) 345.16 80 08/28/2025 22:41:04 ( 0.02,-137.00) ( -0.47,-139.27) 258.39 80 08/29/2025 22:24:58 ( 0.02,-136.99) ( 0.51,-134.73) 257.42 80 08/31/2025 10:46:47 ( -0.03,-136.97) ( 0.65,-140.00) 345.99 80 09/01/2025 10:25:22 ( -0.03,-136.96) ( -0.39,-135.48) 169.23 80 09/02/2025 22:47:17 ( 0.03,-136.95) ( -0.80,-140.78) 435.87 80