Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21 TLE Epoch: 2025 4 9. Predictions up to the next 14.0 days: Date Time(HIMAWARI-9) HIMAWARI-9 Lat/Lon NOAA-21 Lat/Lon Distance(km) Time Diff(sec) 04/09/2025 15:48:15 ( 0.00, 140.78) ( -0.70, 143.78) 342.97 80 04/11/2025 04:10:09 ( -0.01, 140.75) ( -0.53, 138.49) 257.62 80 04/12/2025 03:54:03 ( -0.00, 140.74) ( 0.52, 143.02) 260.85 80 04/13/2025 16:15:49 ( 0.00, 140.72) ( 0.66, 137.76) 337.32 80 04/14/2025 15:54:22 ( 0.00, 140.71) ( -0.34, 142.30) 181.15 80 04/16/2025 04:16:16 ( -0.00, 140.68) ( -0.81, 137.00) 418.84 80 04/17/2025 04:00:10 ( 0.00, 140.66) ( 0.20, 141.54) 100.09 80 04/18/2025 16:21:55 ( 0.00, 140.64) ( 0.98, 136.28) 497.16 80 04/19/2025 16:00:29 ( -0.00, 140.62) ( -0.03, 140.82) 21.88 80 04/22/2025 04:03:36 ( -0.00, 140.57) ( -0.14, 140.06) 57.98 80 04/23/2025 03:47:29 ( -0.00, 140.54) ( 0.88, 144.60) 461.95 80