Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and FY3D Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/11/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (FY3D) | Time (FY3D) | Lat,Lon (FY3D) | SZA (FY3D ) | Distance(km) | Time Diff (sec) |
| 1 | 10/21/2025 | 07:40:17 | 81.03, 10.72 | 95.00 | 10/21/2025 | 07:41:19 | 80.97, 15.93 | 94.33 | 90.96 | 62 |
| 2 | 10/21/2025 | 09:21:43 | 80.97, -13.26 | 94.82 | 10/21/2025 | 09:22:52 | 80.93, -10.78 | 94.48 | 43.54 | 69 |
| 3 | 10/21/2025 | 11:03:09 | 80.91, -37.26 | 94.65 | 10/21/2025 | 11:04:24 | 80.91, -37.12 | 94.60 | 2.51 | 75 |
| 4 | 10/21/2025 | 12:44:39 | 80.91, -62.71 | 94.68 | 10/21/2025 | 12:45:54 | 80.90, -62.71 | 94.64 | 1.17 | 75 |
| 5 | 10/21/2025 | 13:35:28 | -80.99, 102.94 | 85.07 | 10/21/2025 | 13:36:35 | -80.95, 106.33 | 85.51 | 59.20 | 67 |
| 6 | 10/21/2025 | 14:26:08 | 80.90, -87.80 | 94.67 | 10/21/2025 | 14:27:23 | 80.91, -87.93 | 94.65 | 2.44 | 75 |
| 7 | 10/21/2025 | 15:16:55 | -80.94, 78.58 | 85.19 | 10/21/2025 | 15:18:08 | -80.91, 79.62 | 85.37 | 18.52 | 73 |
| 8 | 10/21/2025 | 16:07:38 | 80.90,-113.25 | 94.70 | 10/21/2025 | 16:08:52 | 80.91,-113.15 | 94.66 | 1.98 | 74 |
| 9 | 10/21/2025 | 16:58:23 | -80.91, 53.86 | 85.26 | 10/21/2025 | 16:59:38 | -80.91, 54.03 | 85.32 | 3.19 | 75 |
| 10 | 10/21/2025 | 17:49:08 | 80.91,-138.70 | 94.74 | 10/21/2025 | 17:50:22 | 80.90,-138.74 | 94.71 | 0.77 | 74 |
| 11 | 10/21/2025 | 18:39:52 | -80.90, 28.77 | 85.28 | 10/21/2025 | 18:41:07 | -80.91, 28.81 | 85.31 | 1.62 | 75 |
| 12 | 10/21/2025 | 19:30:38 | 80.91,-164.15 | 94.77 | 10/21/2025 | 19:31:51 | 80.91,-163.96 | 94.72 | 3.28 | 73 |
| 13 | 10/21/2025 | 20:21:22 | -80.90, 3.32 | 85.24 | 10/21/2025 | 20:22:37 | -80.90, 3.22 | 85.27 | 1.68 | 75 |
| 14 | 10/21/2025 | 21:12:08 | 80.91, 170.41 | 94.81 | 10/21/2025 | 21:13:21 | 80.90, 170.45 | 94.76 | 1.46 | 73 |
| 15 | 10/21/2025 | 22:02:52 | -80.91, -22.13 | 85.21 | 10/21/2025 | 22:04:06 | -80.91, -22.00 | 85.26 | 2.38 | 74 |
| 16 | 10/21/2025 | 22:53:37 | 80.90, 145.32 | 94.79 | 10/21/2025 | 22:54:50 | 80.91, 145.23 | 94.77 | 1.71 | 73 |
| 17 | 10/21/2025 | 23:44:22 | -80.91, -47.58 | 85.17 | 10/21/2025 | 23:45:36 | -80.90, -47.59 | 85.21 | 0.77 | 74 |
| 18 | 10/22/2025 | 00:35:07 | 80.90, 119.87 | 94.83 | 10/22/2025 | 00:36:19 | 80.91, 120.01 | 94.78 | 2.65 | 72 |
| 19 | 10/22/2025 | 01:25:51 | -80.89, -72.67 | 85.19 | 10/22/2025 | 01:27:05 | -80.91, -72.81 | 85.20 | 2.74 | 74 |
| 20 | 10/22/2025 | 02:16:37 | 80.91, 94.42 | 94.86 | 10/22/2025 | 02:17:49 | 80.90, 94.42 | 94.83 | 0.26 | 72 |
| 21 | 10/22/2025 | 03:07:21 | -80.90, -98.12 | 85.15 | 10/22/2025 | 03:08:34 | -80.91, -98.03 | 85.19 | 2.07 | 73 |
| 22 | 10/22/2025 | 03:58:07 | 80.91, 68.97 | 94.90 | 10/22/2025 | 03:59:19 | 80.90, 68.83 | 94.87 | 2.83 | 72 |
| 23 | 10/22/2025 | 04:48:51 | -80.90,-123.57 | 85.12 | 10/22/2025 | 04:50:04 | -80.90,-123.62 | 85.15 | 0.94 | 73 |
| 24 | 10/22/2025 | 05:39:37 | 80.91, 43.52 | 94.93 | 10/22/2025 | 05:40:48 | 80.90, 43.61 | 94.88 | 2.03 | 71 |
| 25 | 10/22/2025 | 06:30:21 | -80.91,-149.01 | 85.08 | 10/22/2025 | 06:31:33 | -80.91,-148.84 | 85.14 | 3.10 | 72 |
| 26 | 10/22/2025 | 07:21:06 | 80.90, 18.43 | 94.92 | 10/22/2025 | 07:22:17 | 80.91, 18.38 | 94.89 | 1.04 | 71 |
| 27 | 10/22/2025 | 08:11:51 | -80.91,-174.46 | 85.05 | 10/22/2025 | 08:13:03 | -80.90,-174.43 | 85.09 | 1.00 | 72 |
| 28 | 10/22/2025 | 09:02:36 | 80.90, -7.02 | 94.95 | 10/22/2025 | 09:03:47 | 80.90, -7.21 | 94.94 | 3.26 | 71 |
| 29 | 10/22/2025 | 09:53:20 | -80.90, 160.45 | 85.07 | 10/22/2025 | 09:54:32 | -80.91, 160.35 | 85.08 | 2.09 | 72 |
| 30 | 10/22/2025 | 10:44:06 | 80.91, -32.47 | 94.99 | 10/22/2025 | 10:45:16 | 80.90, -32.43 | 94.95 | 0.86 | 70 |
| 31 | 10/22/2025 | 11:34:50 | -80.90, 135.00 | 85.03 | 10/22/2025 | 11:36:01 | -80.91, 135.13 | 85.07 | 2.65 | 71 |
| 32 | 10/22/2025 | 12:25:36 | 80.91, -57.92 | 95.02 | 10/22/2025 | 12:26:46 | 80.90, -58.02 | 94.99 | 2.25 | 70 |
| 33 | 10/22/2025 | 13:16:20 | -80.90, 109.55 | 84.99 | 10/22/2025 | 13:17:31 | -80.90, 109.54 | 85.03 | 0.26 | 71 |
| 34 | 10/22/2025 | 14:07:06 | 80.91, -83.37 | 95.06 | 10/22/2025 | 14:08:15 | 80.90, -83.24 | 95.00 | 2.71 | 69 |
| 35 | 10/22/2025 | 14:57:50 | -80.91, 84.10 | 84.96 | 10/22/2025 | 14:59:01 | -80.90, 83.95 | 84.98 | 2.82 | 71 |
| 36 | 10/22/2025 | 15:48:35 | 80.90,-108.46 | 95.04 | 10/22/2025 | 15:49:44 | 80.91,-108.46 | 95.01 | 0.63 | 69 |
| 37 | 10/22/2025 | 16:39:20 | -80.91, 58.65 | 84.92 | 10/22/2025 | 16:40:30 | -80.90, 58.73 | 84.97 | 1.59 | 70 |
| 38 | 10/22/2025 | 17:30:05 | 80.90,-133.91 | 95.08 | 10/22/2025 | 17:31:14 | 80.90,-134.05 | 95.06 | 2.52 | 69 |
| 39 | 10/22/2025 | 18:20:49 | -80.90, 33.56 | 84.94 | 10/22/2025 | 18:21:59 | -80.91, 33.51 | 84.96 | 1.51 | 70 |
| 40 | 10/22/2025 | 19:11:35 | 80.91,-159.36 | 95.11 | 10/22/2025 | 19:12:43 | 80.90,-159.27 | 95.07 | 1.61 | 68 |
| 41 | 10/22/2025 | 20:02:19 | -80.90, 8.11 | 84.91 | 10/22/2025 | 20:03:28 | -80.91, 8.29 | 84.95 | 3.28 | 69 |
| 42 | 10/22/2025 | 20:53:04 | 80.89, 175.55 | 95.09 | 10/22/2025 | 20:54:12 | 80.91, 175.51 | 95.08 | 1.76 | 68 |
| 43 | 10/22/2025 | 21:43:49 | -80.90, -17.34 | 84.87 | 10/22/2025 | 21:44:58 | -80.90, -17.30 | 84.91 | 0.57 | 69 |
| 44 | 10/22/2025 | 22:34:34 | 80.90, 150.10 | 95.13 | 10/22/2025 | 22:35:42 | 80.90, 149.91 | 95.12 | 3.27 | 68 |
| 45 | 10/22/2025 | 23:25:19 | -80.91, -42.79 | 84.84 | 10/22/2025 | 23:26:28 | -80.90, -42.89 | 84.86 | 2.18 | 69 |
| 46 | 10/23/2025 | 00:16:04 | 80.90, 124.65 | 95.16 | 10/23/2025 | 00:17:11 | 80.91, 124.69 | 95.13 | 0.95 | 67 |
| 47 | 10/23/2025 | 01:06:49 | -80.91, -68.23 | 84.80 | 10/23/2025 | 01:07:57 | -80.90, -68.12 | 84.85 | 2.27 | 68 |
| 48 | 10/23/2025 | 01:57:34 | 80.91, 99.20 | 95.20 | 10/23/2025 | 01:58:41 | 80.90, 99.10 | 95.18 | 1.81 | 67 |
| 49 | 10/23/2025 | 02:48:18 | -80.90, -93.33 | 84.82 | 10/23/2025 | 02:49:26 | -80.91, -93.34 | 84.84 | 1.12 | 68 |
| 50 | 10/23/2025 | 03:39:04 | 80.91, 73.75 | 95.24 | 10/23/2025 | 03:40:10 | 80.90, 73.88 | 95.19 | 2.38 | 66 |
| 51 | 10/23/2025 | 04:29:48 | -80.90,-118.77 | 84.78 | 10/23/2025 | 04:30:56 | -80.90,-118.93 | 84.80 | 2.72 | 68 |
| 52 | 10/23/2025 | 05:20:33 | 80.90, 48.66 | 95.22 | 10/23/2025 | 05:21:39 | 80.91, 48.66 | 95.20 | 1.50 | 66 |
| 53 | 10/23/2025 | 06:11:18 | -80.90,-144.22 | 84.75 | 10/23/2025 | 06:12:25 | -80.90,-144.15 | 84.79 | 1.28 | 67 |
| 54 | 10/23/2025 | 07:02:03 | 80.90, 23.21 | 95.25 | 10/23/2025 | 07:03:09 | 80.90, 23.07 | 95.24 | 2.50 | 66 |
| 55 | 10/23/2025 | 07:52:48 | -80.91,-169.67 | 84.71 | 10/23/2025 | 07:53:55 | -80.90,-169.74 | 84.74 | 1.61 | 67 |
| 56 | 10/23/2025 | 08:43:33 | 80.90, -2.24 | 95.29 | 10/23/2025 | 08:44:38 | 80.91, -2.16 | 95.25 | 1.61 | 65 |
| 57 | 10/23/2025 | 09:34:17 | -80.91, 164.88 | 84.68 | 10/23/2025 | 09:35:23 | -80.90, 165.04 | 84.73 | 2.97 | 66 |
| 58 | 10/23/2025 | 10:25:02 | 80.91, -27.69 | 95.32 | 10/23/2025 | 10:26:07 | 80.90, -27.75 | 95.29 | 1.17 | 65 |
| 59 | 10/23/2025 | 11:15:46 | -80.90, 139.79 | 84.69 | 10/23/2025 | 11:16:52 | -80.91, 139.82 | 84.72 | 1.14 | 66 |
| 60 | 10/23/2025 | 12:06:32 | 80.91, -53.14 | 95.36 | 10/23/2025 | 12:07:36 | 80.90, -52.97 | 95.30 | 3.15 | 64 |
| 61 | 10/23/2025 | 12:57:16 | -80.90, 114.34 | 84.66 | 10/23/2025 | 12:58:22 | -80.90, 114.23 | 84.68 | 1.99 | 66 |
| 62 | 10/23/2025 | 13:48:01 | 80.90, -78.23 | 95.34 | 10/23/2025 | 13:49:05 | 80.91, -78.19 | 95.31 | 1.59 | 64 |
| 63 | 10/23/2025 | 14:38:46 | -80.91, 88.89 | 84.62 | 10/23/2025 | 14:39:51 | -80.91, 89.00 | 84.67 | 2.01 | 65 |
| 64 | 10/23/2025 | 15:29:31 | 80.90,-103.69 | 95.38 | 10/23/2025 | 15:30:35 | 80.90,-103.78 | 95.36 | 1.72 | 64 |
| 65 | 10/23/2025 | 16:20:16 | -80.91, 63.44 | 84.59 | 10/23/2025 | 16:21:21 | -80.90, 63.41 | 84.62 | 1.25 | 65 |
| 66 | 10/23/2025 | 17:11:01 | 80.90,-129.14 | 95.41 | 10/23/2025 | 17:12:04 | 80.91,-129.00 | 95.37 | 2.34 | 63 |
| 67 | 10/23/2025 | 18:01:45 | -80.90, 38.35 | 84.61 | 10/23/2025 | 18:02:50 | -80.90, 38.19 | 84.61 | 2.90 | 65 |
| 68 | 10/23/2025 | 18:52:31 | 80.91,-154.59 | 95.45 | 10/23/2025 | 18:53:34 | 80.90,-154.60 | 95.41 | 0.84 | 63 |
| 69 | 10/23/2025 | 19:43:15 | -80.90, 12.90 | 84.57 | 10/23/2025 | 19:44:19 | -80.91, 12.97 | 84.60 | 1.54 | 64 |
| 70 | 10/23/2025 | 20:34:00 | 80.89,-179.68 | 95.43 | 10/23/2025 | 20:35:03 | 80.90,-179.82 | 95.42 | 2.75 | 63 |
| 71 | 10/23/2025 | 21:24:45 | -80.90, -12.55 | 84.54 | 10/23/2025 | 21:25:49 | -80.90, -12.62 | 84.56 | 1.27 | 64 |
| 72 | 10/23/2025 | 22:15:30 | 80.90, 154.87 | 95.47 | 10/23/2025 | 22:16:32 | 80.91, 154.96 | 95.43 | 2.00 | 62 |
| 73 | 10/23/2025 | 23:06:15 | -80.91, -38.00 | 84.50 | 10/23/2025 | 23:07:18 | -80.91, -37.84 | 84.55 | 2.74 | 63 |
| 74 | 10/23/2025 | 23:57:00 | 80.90, 129.42 | 95.50 | 10/23/2025 | 23:58:02 | 80.90, 129.37 | 95.48 | 0.94 | 62 |
| 75 | 10/24/2025 | 00:47:45 | -80.91, -63.45 | 84.47 | 10/24/2025 | 00:48:48 | -80.90, -63.43 | 84.50 | 1.28 | 63 |
| 76 | 10/24/2025 | 01:38:30 | 80.90, 103.97 | 95.54 | 10/24/2025 | 01:39:31 | 80.91, 104.15 | 95.49 | 3.09 | 61 |
| 77 | 10/24/2025 | 02:29:14 | -80.90, -88.54 | 84.48 | 10/24/2025 | 02:30:17 | -80.90, -88.66 | 84.49 | 2.19 | 63 |
| 78 | 10/24/2025 | 03:20:00 | 80.91, 78.52 | 95.57 | 10/24/2025 | 03:21:01 | 80.90, 78.55 | 95.53 | 1.12 | 61 |
| 79 | 10/24/2025 | 04:10:44 | -80.90,-113.99 | 84.45 | 10/24/2025 | 04:11:46 | -80.91,-113.88 | 84.48 | 2.12 | 62 |
| 80 | 10/24/2025 | 05:01:29 | 80.89, 53.43 | 95.55 | 10/24/2025 | 05:02:30 | 80.90, 53.33 | 95.54 | 2.01 | 61 |
| 81 | 10/24/2025 | 05:52:14 | -80.90,-139.44 | 84.41 | 10/24/2025 | 05:53:16 | -80.90,-139.47 | 84.44 | 0.61 | 62 |
| 82 | 10/24/2025 | 06:42:59 | 80.90, 27.98 | 95.59 | 10/24/2025 | 06:43:59 | 80.91, 28.11 | 95.55 | 2.58 | 60 |
| 83 | 10/24/2025 | 07:33:43 | -80.89,-164.53 | 84.43 | 10/24/2025 | 07:34:45 | -80.91,-164.69 | 84.43 | 3.32 | 62 |
| 84 | 10/24/2025 | 08:24:29 | 80.90, 2.53 | 95.62 | 10/24/2025 | 08:25:29 | 80.90, 2.52 | 95.60 | 0.17 | 60 |
| 85 | 10/24/2025 | 09:15:14 | -80.91, 169.66 | 84.34 | 10/24/2025 | 09:16:15 | -80.90, 169.72 | 84.39 | 1.67 | 61 |
| 86 | 10/24/2025 | 10:05:59 | 80.91, -22.92 | 95.66 | 10/24/2025 | 10:06:59 | 80.90, -23.07 | 95.64 | 2.90 | 60 |
| 87 | 10/24/2025 | 10:56:43 | -80.90, 144.57 | 84.36 | 10/24/2025 | 10:57:44 | -80.90, 144.49 | 84.38 | 1.48 | 61 |
| 88 | 10/24/2025 | 11:47:29 | 80.91, -48.37 | 95.70 | 10/24/2025 | 11:48:28 | 80.90, -48.30 | 95.65 | 1.74 | 59 |
| 89 | 10/24/2025 | 12:38:13 | -80.90, 119.12 | 84.32 | 10/24/2025 | 12:39:13 | -80.91, 119.27 | 84.37 | 2.77 | 60 |
| 90 | 10/24/2025 | 13:28:58 | 80.90, -73.47 | 95.68 | 10/24/2025 | 13:29:57 | 80.90, -73.52 | 95.66 | 1.33 | 59 |
| 91 | 10/24/2025 | 14:19:43 | -80.90, 93.67 | 84.29 | 10/24/2025 | 14:20:43 | -80.90, 93.68 | 84.32 | 0.44 | 60 |
| 92 | 10/24/2025 | 15:10:28 | 80.90, -98.92 | 95.71 | 10/24/2025 | 15:11:26 | 80.91, -98.74 | 95.67 | 3.25 | 58 |
| 93 | 10/24/2025 | 16:01:12 | -80.89, 68.58 | 84.31 | 10/24/2025 | 16:02:12 | -80.91, 68.46 | 84.31 | 2.67 | 60 |
| 94 | 10/24/2025 | 16:51:58 | 80.90,-124.37 | 95.75 | 10/24/2025 | 16:52:56 | 80.90,-124.33 | 95.72 | 0.61 | 58 |
| 95 | 10/24/2025 | 17:42:43 | -80.91, 42.77 | 84.22 | 10/24/2025 | 17:43:42 | -80.90, 42.87 | 84.27 | 2.24 | 59 |
| 96 | 10/24/2025 | 18:33:28 | 80.91,-149.82 | 95.78 | 10/24/2025 | 18:34:26 | 80.90,-149.93 | 95.76 | 2.29 | 58 |
| 97 | 10/24/2025 | 19:24:12 | -80.90, 17.68 | 84.24 | 10/24/2025 | 19:25:11 | -80.90, 17.64 | 84.26 | 0.82 | 59 |
| 98 | 10/24/2025 | 20:14:58 | 80.91,-175.27 | 95.82 | 10/24/2025 | 20:15:55 | 80.90,-175.15 | 95.77 | 2.46 | 57 |
| 99 | 10/24/2025 | 21:05:42 | -80.90, -7.77 | 84.20 | 10/24/2025 | 21:06:41 | -80.90, -7.95 | 84.21 | 3.14 | 59 |
| 100 | 10/24/2025 | 21:56:27 | 80.90, 159.64 | 95.80 | 10/24/2025 | 21:57:24 | 80.90, 159.63 | 95.78 | 0.82 | 57 |
| 101 | 10/24/2025 | 22:47:12 | -80.91, -33.22 | 84.17 | 10/24/2025 | 22:48:10 | -80.90, -33.17 | 84.20 | 1.04 | 58 |
| 102 | 10/24/2025 | 23:37:57 | 80.90, 134.19 | 95.84 | 10/24/2025 | 23:38:54 | 80.90, 134.04 | 95.82 | 2.68 | 57 |
| 103 | 10/25/2025 | 00:28:41 | -80.89, -58.31 | 84.18 | 10/25/2025 | 00:29:39 | -80.91, -58.39 | 84.19 | 2.06 | 58 |
| 104 | 10/25/2025 | 01:19:27 | 80.90, 108.74 | 95.87 | 10/25/2025 | 01:20:23 | 80.90, 108.81 | 95.83 | 1.39 | 56 |
| 105 | 10/25/2025 | 02:10:12 | -80.91, -84.12 | 84.10 | 10/25/2025 | 02:11:09 | -80.90, -83.98 | 84.15 | 2.88 | 57 |
Figure of NOAA-21 and FY3D satellite orbits during SNOs since TLE Epoch: 10/11/2025
Download SNOs between NOAA-21 and FY3D since TLE EPOCH: 10/11/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and FY3D