Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and FY3D TLE Epoch: 2025 10 9. Predictions up to the next 14.0 days: Date Time(NOAA-21) NOAA-21 Lat/Lon Date Time(FY3D) FY3D Lat/Lon Distance(km) Time Diff(sec) 10/21/2025 07:40:16 ( 81.00, 11.45) 10/21/2025 07:41:21 ( 80.96, 15.50) 70.77 65 10/21/2025 09:21:43 ( 80.96, -12.90) 10/21/2025 09:22:54 ( 80.92, -11.21) 29.83 71 10/21/2025 11:03:10 ( 80.91, -37.26) 10/21/2025 11:04:25 ( 80.91, -37.17) 1.61 75 10/21/2025 11:54:02 ( -81.03, 127.30) 10/21/2025 11:55:05 ( -80.96, 132.25) 86.35 63 10/21/2025 12:44:40 ( 80.91, -62.71) 10/21/2025 12:45:55 ( 80.90, -62.76) 1.63 75 10/21/2025 13:35:28 ( -80.97, 103.32) 10/21/2025 13:36:38 ( -80.93, 105.54) 39.17 70 10/21/2025 14:26:08 ( 80.90, -87.80) 10/21/2025 14:27:23 ( 80.90, -87.98) 3.28 75 10/21/2025 15:16:53 ( -80.91, 79.31) 10/21/2025 15:18:09 ( -80.90, 79.21) 1.98 76 10/21/2025 16:07:38 ( 80.90,-113.25) 10/21/2025 16:08:52 ( 80.91,-113.20) 1.10 74 10/21/2025 16:58:23 ( -80.91, 53.87) 10/21/2025 16:59:38 ( -80.91, 53.99) 2.29 75 10/21/2025 17:49:08 ( 80.91,-138.70) 10/21/2025 17:50:22 ( 80.90,-138.79) 1.73 74 10/21/2025 18:39:52 ( -80.90, 28.78) 10/21/2025 18:41:07 ( -80.91, 28.77) 1.33 75 10/21/2025 19:30:38 ( 80.91,-164.15) 10/21/2025 19:31:51 ( 80.91,-164.01) 2.34 73 10/21/2025 20:21:22 ( -80.90, 3.33) 10/21/2025 20:22:37 ( -80.90, 3.18) 2.63 75 10/21/2025 21:12:08 ( 80.91, 170.40) 10/21/2025 21:13:21 ( 80.90, 170.39) 1.42 73 10/21/2025 22:02:52 ( -80.90, -22.12) 10/21/2025 22:04:06 ( -80.91, -22.04) 1.41 74 10/21/2025 22:53:37 ( 80.90, 145.32) 10/21/2025 22:54:50 ( 80.90, 145.17) 2.57 73 10/21/2025 23:44:22 ( -80.91, -47.57) 10/21/2025 23:45:36 ( -80.90, -47.63) 1.38 74 10/22/2025 00:35:07 ( 80.90, 119.87) 10/22/2025 00:36:19 ( 80.91, 119.95) 1.68 72 10/22/2025 01:25:52 ( -80.91, -73.01) 10/22/2025 01:27:05 ( -80.91, -72.85) 2.96 73 10/22/2025 02:16:37 ( 80.91, 94.42) 10/22/2025 02:17:49 ( 80.90, 94.36) 1.06 72 10/22/2025 03:07:21 ( -80.90, -98.10) 10/22/2025 03:08:34 ( -80.91, -98.07) 1.42 73 10/22/2025 03:58:07 ( 80.91, 68.97) 10/22/2025 03:59:18 ( 80.91, 69.14) 3.06 71 10/22/2025 04:48:51 ( -80.90,-123.55) 10/22/2025 04:50:04 ( -80.90,-123.66) 1.93 73 10/22/2025 05:39:37 ( 80.91, 43.52) 10/22/2025 05:40:48 ( 80.90, 43.55) 1.56 71 10/22/2025 06:30:21 ( -80.91,-149.00) 10/22/2025 06:31:33 ( -80.91,-148.88) 2.08 72 10/22/2025 07:21:06 ( 80.90, 18.43) 10/22/2025 07:22:17 ( 80.90, 18.33) 1.86 71 10/22/2025 08:11:51 ( -80.91,-174.45) 10/22/2025 08:13:03 ( -80.90,-174.47) 0.94 72 10/22/2025 09:02:36 ( 80.90, -7.02) 10/22/2025 09:03:46 ( 80.91, -6.89) 2.34 70 10/22/2025 09:53:20 ( -80.90, 160.46) 10/22/2025 09:54:32 ( -80.91, 160.31) 2.98 72 10/22/2025 10:44:06 ( 80.91, -32.47) 10/22/2025 10:45:16 ( 80.90, -32.48) 0.54 70 10/22/2025 11:34:50 ( -80.90, 135.02) 10/22/2025 11:36:01 ( -80.91, 135.09) 1.79 71 10/22/2025 12:25:35 ( 80.89, -57.56) 10/22/2025 12:26:45 ( 80.91, -57.70) 3.00 70 10/22/2025 13:16:20 ( -80.90, 109.57) 10/22/2025 13:17:31 ( -80.90, 109.50) 1.25 71 10/22/2025 14:07:06 ( 80.91, -83.37) 10/22/2025 14:08:15 ( 80.90, -83.29) 1.98 69 10/22/2025 14:57:50 ( -80.91, 84.12) 10/22/2025 14:59:00 ( -80.91, 84.28) 2.76 70 10/22/2025 15:48:35 ( 80.90,-108.45) 10/22/2025 15:49:44 ( 80.91,-108.51) 1.17 69 10/22/2025 16:39:20 ( -80.91, 58.67) 10/22/2025 16:40:30 ( -80.90, 58.69) 0.91 70 10/22/2025 17:30:05 ( 80.90,-133.90) 10/22/2025 17:31:13 ( 80.91,-133.74) 3.02 68 10/22/2025 18:20:49 ( -80.90, 33.58) 10/22/2025 18:21:59 ( -80.91, 33.47) 2.35 70 10/22/2025 19:11:35 ( 80.91,-159.35) 10/22/2025 19:12:43 ( 80.90,-159.33) 0.72 68 10/22/2025 20:02:19 ( -80.90, 8.13) 10/22/2025 20:03:28 ( -80.91, 8.24) 2.30 69 10/22/2025 20:53:04 ( 80.89, 175.56) 10/22/2025 20:54:12 ( 80.91, 175.45) 2.37 68 10/22/2025 21:43:49 ( -80.90, -17.31) 10/22/2025 21:44:58 ( -80.90, -17.35) 0.56 69 10/22/2025 22:34:35 ( 80.92, 149.75) 10/22/2025 22:35:42 ( 80.90, 149.86) 2.55 67 10/22/2025 23:25:19 ( -80.91, -42.76) 10/22/2025 23:26:28 ( -80.90, -42.94) 3.21 69 10/23/2025 00:16:04 ( 80.90, 124.66) 10/23/2025 00:17:11 ( 80.91, 124.64) 0.55 67 10/23/2025 01:06:49 ( -80.91, -68.21) 10/23/2025 01:07:57 ( -80.90, -68.16) 1.32 68 10/23/2025 01:57:34 ( 80.91, 99.21) 10/23/2025 01:58:41 ( 80.90, 99.05) 2.91 67 10/23/2025 02:48:18 ( -80.90, -93.30) 10/23/2025 02:49:26 ( -80.91, -93.38) 1.76 68