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: 10/10/2025
| 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 | 09:21:46 | 81.00, -14.05 | 94.94 | 10/21/2025 | 09:22:51 | 80.96, -9.98 | 94.41 | 71.06 | 65 |
| 2 | 10/21/2025 | 11:03:12 | 80.96, -38.40 | 94.82 | 10/21/2025 | 11:04:22 | 80.93, -36.32 | 94.52 | 36.52 | 70 |
| 3 | 10/21/2025 | 12:44:39 | 80.91, -62.76 | 94.69 | 10/21/2025 | 12:45:54 | 80.90, -62.65 | 94.64 | 2.26 | 75 |
| 4 | 10/21/2025 | 13:35:31 | -81.03, 101.79 | 84.90 | 10/21/2025 | 13:36:33 | -80.97, 107.13 | 85.59 | 93.07 | 62 |
| 5 | 10/21/2025 | 14:26:08 | 80.90, -87.85 | 94.67 | 10/21/2025 | 14:27:23 | 80.91, -87.87 | 94.65 | 0.86 | 75 |
| 6 | 10/21/2025 | 15:16:57 | -80.98, 77.81 | 85.08 | 10/21/2025 | 15:18:06 | -80.94, 80.42 | 85.44 | 45.90 | 69 |
| 7 | 10/21/2025 | 16:07:38 | 80.90,-113.30 | 94.71 | 10/21/2025 | 16:08:53 | 80.90,-113.46 | 94.69 | 2.92 | 75 |
| 8 | 10/21/2025 | 16:58:24 | -80.93, 53.45 | 85.20 | 10/21/2025 | 16:59:38 | -80.91, 54.09 | 85.33 | 11.61 | 74 |
| 9 | 10/21/2025 | 17:49:08 | 80.91,-138.75 | 94.75 | 10/21/2025 | 17:50:22 | 80.91,-138.68 | 94.70 | 1.19 | 74 |
| 10 | 10/21/2025 | 18:39:52 | -80.90, 28.72 | 85.27 | 10/21/2025 | 18:41:07 | -80.91, 28.87 | 85.32 | 3.04 | 75 |
| 11 | 10/21/2025 | 19:30:38 | 80.91,-164.20 | 94.78 | 10/21/2025 | 19:31:52 | 80.90,-164.27 | 94.75 | 1.94 | 74 |
| 12 | 10/21/2025 | 20:21:22 | -80.90, 3.27 | 85.24 | 10/21/2025 | 20:22:37 | -80.91, 3.29 | 85.27 | 0.35 | 75 |
| 13 | 10/21/2025 | 21:12:08 | 80.92, 170.35 | 94.82 | 10/21/2025 | 21:13:21 | 80.90, 170.51 | 94.76 | 3.04 | 73 |
| 14 | 10/21/2025 | 22:02:52 | -80.91, -22.18 | 85.20 | 10/21/2025 | 22:04:07 | -80.90, -22.30 | 85.23 | 2.37 | 75 |
| 15 | 10/21/2025 | 22:53:37 | 80.90, 145.26 | 94.80 | 10/21/2025 | 22:54:50 | 80.91, 145.29 | 94.77 | 0.82 | 73 |
| 16 | 10/21/2025 | 23:44:22 | -80.91, -47.63 | 85.16 | 10/21/2025 | 23:45:36 | -80.90, -47.52 | 85.22 | 1.99 | 74 |
| 17 | 10/22/2025 | 00:35:07 | 80.91, 119.81 | 94.83 | 10/22/2025 | 00:36:20 | 80.90, 119.70 | 94.81 | 2.07 | 73 |
| 18 | 10/22/2025 | 01:25:51 | -80.90, -72.72 | 85.18 | 10/22/2025 | 01:27:05 | -80.91, -72.74 | 85.21 | 1.31 | 74 |
| 19 | 10/22/2025 | 02:16:37 | 80.91, 94.36 | 94.87 | 10/22/2025 | 02:17:49 | 80.91, 94.48 | 94.82 | 2.05 | 72 |
| 20 | 10/22/2025 | 03:07:21 | -80.90, -98.17 | 85.15 | 10/22/2025 | 03:08:35 | -80.90, -98.33 | 85.16 | 2.92 | 74 |
| 21 | 10/22/2025 | 03:58:07 | 80.91, 68.91 | 94.91 | 10/22/2025 | 03:59:19 | 80.90, 68.89 | 94.86 | 1.55 | 72 |
| 22 | 10/22/2025 | 04:48:51 | -80.90,-123.61 | 85.11 | 10/22/2025 | 04:50:04 | -80.91,-123.55 | 85.15 | 1.12 | 73 |
| 23 | 10/22/2025 | 05:39:36 | 80.90, 43.82 | 94.89 | 10/22/2025 | 05:40:48 | 80.90, 43.67 | 94.88 | 2.79 | 72 |
| 24 | 10/22/2025 | 06:30:21 | -80.91,-149.06 | 85.08 | 10/22/2025 | 06:31:34 | -80.90,-149.14 | 85.11 | 1.64 | 73 |
| 25 | 10/22/2025 | 07:21:06 | 80.90, 18.37 | 94.92 | 10/22/2025 | 07:22:17 | 80.91, 18.45 | 94.89 | 1.45 | 71 |
| 26 | 10/22/2025 | 08:11:51 | -80.91,-174.51 | 85.04 | 10/22/2025 | 08:13:03 | -80.90,-174.36 | 85.10 | 2.79 | 72 |
| 27 | 10/22/2025 | 09:02:36 | 80.91, -7.08 | 94.96 | 10/22/2025 | 09:03:47 | 80.90, -7.14 | 94.93 | 1.26 | 71 |
| 28 | 10/22/2025 | 09:53:20 | -80.90, 160.40 | 85.06 | 10/22/2025 | 09:54:32 | -80.91, 160.42 | 85.09 | 1.25 | 72 |
| 29 | 10/22/2025 | 10:44:06 | 80.91, -32.53 | 94.99 | 10/22/2025 | 10:45:16 | 80.91, -32.36 | 94.94 | 2.92 | 70 |
| 30 | 10/22/2025 | 11:34:50 | -80.90, 134.95 | 85.02 | 10/22/2025 | 11:36:02 | -80.90, 134.83 | 85.04 | 2.08 | 72 |
| 31 | 10/22/2025 | 12:25:36 | 80.91, -57.98 | 95.03 | 10/22/2025 | 12:26:46 | 80.90, -57.95 | 94.98 | 1.61 | 70 |
| 32 | 10/22/2025 | 13:16:20 | -80.91, 109.50 | 84.99 | 10/22/2025 | 13:17:31 | -80.91, 109.61 | 85.03 | 1.94 | 71 |
| 33 | 10/22/2025 | 14:07:05 | 80.90, -83.07 | 95.01 | 10/22/2025 | 14:08:15 | 80.90, -83.17 | 94.99 | 1.93 | 70 |
| 34 | 10/22/2025 | 14:57:50 | -80.91, 84.05 | 84.95 | 10/22/2025 | 14:59:01 | -80.90, 84.02 | 84.99 | 1.09 | 71 |
| 35 | 10/22/2025 | 15:48:35 | 80.90,-108.52 | 95.05 | 10/22/2025 | 15:49:44 | 80.91,-108.39 | 95.00 | 2.25 | 69 |
| 36 | 10/22/2025 | 16:39:19 | -80.90, 58.96 | 84.97 | 10/22/2025 | 16:40:30 | -80.91, 58.80 | 84.98 | 3.00 | 71 |
| 37 | 10/22/2025 | 17:30:05 | 80.91,-133.97 | 95.08 | 10/22/2025 | 17:31:14 | 80.90,-133.98 | 95.05 | 0.64 | 69 |
| 38 | 10/22/2025 | 18:20:49 | -80.90, 33.51 | 84.93 | 10/22/2025 | 18:21:59 | -80.91, 33.58 | 84.97 | 1.67 | 70 |
| 39 | 10/22/2025 | 19:11:34 | 80.89,-159.06 | 95.07 | 10/22/2025 | 19:12:43 | 80.91,-159.20 | 95.06 | 2.95 | 69 |
| 40 | 10/22/2025 | 20:02:19 | -80.90, 8.06 | 84.90 | 10/22/2025 | 20:03:29 | -80.90, 7.99 | 84.92 | 1.25 | 70 |
| 41 | 10/22/2025 | 20:53:05 | 80.91, 175.13 | 95.15 | 10/22/2025 | 20:54:13 | 80.90, 175.21 | 95.10 | 2.08 | 68 |
| 42 | 10/22/2025 | 21:43:49 | -80.91, -17.39 | 84.86 | 10/22/2025 | 21:44:58 | -80.91, -17.23 | 84.91 | 2.78 | 69 |
| 43 | 10/22/2025 | 22:34:34 | 80.90, 150.04 | 95.14 | 10/22/2025 | 22:35:42 | 80.90, 149.99 | 95.11 | 1.07 | 68 |
| 44 | 10/22/2025 | 23:25:19 | -80.91, -42.84 | 84.83 | 10/22/2025 | 23:26:28 | -80.90, -42.82 | 84.87 | 1.06 | 69 |
| 45 | 10/23/2025 | 00:16:04 | 80.90, 124.59 | 95.17 | 10/23/2025 | 00:17:11 | 80.91, 124.77 | 95.12 | 3.09 | 67 |
| 46 | 10/23/2025 | 01:06:48 | -80.90, -67.93 | 84.85 | 10/23/2025 | 01:07:57 | -80.91, -68.04 | 84.86 | 2.21 | 69 |
| 47 | 10/23/2025 | 01:57:34 | 80.91, 99.14 | 95.21 | 10/23/2025 | 01:58:41 | 80.90, 99.17 | 95.17 | 0.88 | 67 |
| 48 | 10/23/2025 | 02:48:18 | -80.90, -93.37 | 84.81 | 10/23/2025 | 02:49:26 | -80.91, -93.26 | 84.85 | 2.33 | 68 |
| 49 | 10/23/2025 | 03:39:03 | 80.89, 74.05 | 95.19 | 10/23/2025 | 03:40:10 | 80.91, 73.95 | 95.18 | 2.18 | 67 |
| 50 | 10/23/2025 | 04:29:48 | -80.90,-118.82 | 84.77 | 10/23/2025 | 04:30:56 | -80.90,-118.85 | 84.80 | 0.41 | 68 |
| 51 | 10/23/2025 | 05:20:33 | 80.90, 48.60 | 95.23 | 10/23/2025 | 05:21:39 | 80.91, 48.73 | 95.19 | 2.76 | 66 |
| 52 | 10/23/2025 | 06:11:18 | -80.91,-144.27 | 84.74 | 10/23/2025 | 06:12:26 | -80.90,-144.44 | 84.76 | 3.10 | 68 |
| 53 | 10/23/2025 | 07:02:03 | 80.90, 23.15 | 95.26 | 10/23/2025 | 07:03:09 | 80.90, 23.14 | 95.23 | 0.33 | 66 |
| 54 | 10/23/2025 | 07:52:48 | -80.91,-169.72 | 84.70 | 10/23/2025 | 07:53:55 | -80.90,-169.66 | 84.75 | 1.57 | 67 |
| 55 | 10/23/2025 | 08:43:33 | 80.91, -2.30 | 95.30 | 10/23/2025 | 08:44:39 | 80.90, -2.45 | 95.28 | 2.72 | 66 |
| 56 | 10/23/2025 | 09:34:17 | -80.90, 165.19 | 84.72 | 10/23/2025 | 09:35:24 | -80.91, 165.12 | 84.74 | 1.48 | 67 |
| 57 | 10/23/2025 | 10:25:03 | 80.91, -27.75 | 95.33 | 10/23/2025 | 10:26:08 | 80.90, -27.67 | 95.29 | 1.64 | 65 |
| 58 | 10/23/2025 | 11:15:47 | -80.90, 139.74 | 84.69 | 10/23/2025 | 11:16:53 | -80.91, 139.90 | 84.73 | 3.07 | 66 |
| 59 | 10/23/2025 | 12:06:32 | 80.90, -52.84 | 95.31 | 10/23/2025 | 12:07:37 | 80.91, -52.89 | 95.30 | 1.52 | 65 |
| 60 | 10/23/2025 | 12:57:17 | -80.90, 114.29 | 84.65 | 10/23/2025 | 12:58:23 | -80.90, 114.31 | 84.69 | 0.44 | 66 |
| 61 | 10/23/2025 | 13:48:02 | 80.90, -78.29 | 95.35 | 10/23/2025 | 13:49:07 | 80.90, -78.48 | 95.34 | 3.29 | 65 |
| 62 | 10/23/2025 | 14:38:46 | -80.91, 88.84 | 84.62 | 10/23/2025 | 14:39:52 | -80.90, 88.72 | 84.64 | 2.37 | 66 |
| 63 | 10/23/2025 | 15:29:31 | 80.90,-103.74 | 95.39 | 10/23/2025 | 15:30:35 | 80.90,-103.70 | 95.35 | 0.78 | 64 |
| 64 | 10/23/2025 | 16:20:16 | -80.91, 63.39 | 84.58 | 10/23/2025 | 16:21:21 | -80.90, 63.50 | 84.63 | 2.29 | 65 |
| 65 | 10/23/2025 | 17:11:01 | 80.91,-129.19 | 95.42 | 10/23/2025 | 17:12:05 | 80.90,-129.29 | 95.40 | 1.94 | 64 |
| 66 | 10/23/2025 | 18:01:45 | -80.90, 38.30 | 84.60 | 10/23/2025 | 18:02:50 | -80.91, 38.28 | 84.62 | 0.93 | 65 |
| 67 | 10/23/2025 | 18:52:31 | 80.91,-154.64 | 95.46 | 10/23/2025 | 18:53:34 | 80.90,-154.51 | 95.41 | 2.49 | 63 |
| 68 | 10/23/2025 | 19:43:15 | -80.90, 12.85 | 84.56 | 10/23/2025 | 19:44:20 | -80.90, 12.69 | 84.58 | 2.77 | 65 |
| 69 | 10/23/2025 | 20:34:00 | 80.90,-179.73 | 95.44 | 10/23/2025 | 20:35:03 | 80.91,-179.73 | 95.42 | 1.18 | 63 |
| 70 | 10/23/2025 | 21:24:45 | -80.91, -12.60 | 84.53 | 10/23/2025 | 21:25:49 | -80.90, -12.53 | 84.57 | 1.27 | 64 |
| 71 | 10/23/2025 | 22:15:30 | 80.90, 154.81 | 95.47 | 10/23/2025 | 22:16:33 | 80.90, 154.68 | 95.46 | 2.41 | 63 |
| 72 | 10/23/2025 | 23:06:15 | -80.91, -38.05 | 84.49 | 10/23/2025 | 23:07:19 | -80.90, -38.12 | 84.52 | 1.77 | 64 |
| 73 | 10/23/2025 | 23:57:00 | 80.90, 129.36 | 95.51 | 10/23/2025 | 23:58:02 | 80.91, 129.46 | 95.47 | 1.64 | 62 |
| 74 | 10/24/2025 | 00:47:45 | -80.91, -63.50 | 84.46 | 10/24/2025 | 00:48:48 | -80.90, -63.34 | 84.51 | 3.07 | 63 |
| 75 | 10/24/2025 | 01:38:30 | 80.91, 103.91 | 95.55 | 10/24/2025 | 01:39:32 | 80.90, 103.87 | 95.51 | 1.33 | 62 |
| 76 | 10/24/2025 | 02:29:14 | -80.90, -88.59 | 84.47 | 10/24/2025 | 02:30:17 | -80.91, -88.56 | 84.50 | 0.97 | 63 |
Figure of NOAA-21 and FY3D satellite orbits during SNOs since TLE Epoch: 10/10/2025
Download SNOs between NOAA-21 and FY3D since TLE EPOCH: 10/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and FY3D