Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21 TLE Epoch: 2025 5 22. 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) 05/24/2025 04:04:08 ( 0.00, 140.75) ( -0.17, 139.92) 93.99 80 05/25/2025 03:48:05 ( 0.00, 140.74) ( 0.86, 144.45) 422.69 80 05/26/2025 16:09:54 ( -0.00, 140.73) ( 0.33, 139.17) 177.12 80 05/27/2025 15:48:31 ( -0.00, 140.72) ( -0.70, 143.69) 339.60 80 05/29/2025 04:10:28 ( -0.00, 140.71) ( -0.50, 138.39) 264.39 80 05/30/2025 03:54:24 ( -0.00, 140.70) ( 0.47, 142.92) 253.02 80 05/31/2025 16:16:13 ( 0.01, 140.67) ( 0.70, 137.65) 345.04 80 06/01/2025 15:54:49 ( 0.01, 140.65) ( -0.33, 142.17) 172.83 80 06/03/2025 04:16:47 ( -0.01, 140.63) ( -0.87, 136.86) 429.57 80 06/04/2025 04:00:43 ( -0.01, 140.61) ( 0.17, 141.39) 89.08 80