Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and METOP-C Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/28/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (METOP-C) | Time (METOP-C) | Lat,Lon (METOP-C) | SZA (METOP-C ) | Distance(km) | Time Diff (sec) |
| 1 | 11/01/2025 | 02:25:45 | 73.37, 134.07 | 87.83 | 11/01/2025 | 02:26:52 | 73.29, 136.61 | 87.69 | 81.67 | 67 |
| 2 | 11/01/2025 | 03:16:27 | -73.30, -58.45 | 92.25 | 11/01/2025 | 03:17:35 | -73.23, -56.19 | 92.36 | 72.59 | 68 |
| 3 | 11/01/2025 | 04:07:09 | 73.09, 109.33 | 87.54 | 11/01/2025 | 04:08:19 | 73.02, 110.68 | 87.44 | 44.15 | 70 |
| 4 | 11/01/2025 | 04:57:51 | -73.01, -83.19 | 92.53 | 11/01/2025 | 04:59:02 | -72.96, -82.12 | 92.60 | 35.20 | 71 |
| 5 | 11/01/2025 | 05:48:33 | 72.79, 84.58 | 87.26 | 11/01/2025 | 05:49:46 | 72.75, 84.76 | 87.20 | 7.97 | 73 |
| 6 | 11/01/2025 | 06:39:15 | -72.72,-107.95 | 92.81 | 11/01/2025 | 06:40:28 | -72.74,-107.92 | 92.80 | 2.36 | 73 |
| 7 | 11/01/2025 | 07:30:01 | 72.70, 59.39 | 87.19 | 11/01/2025 | 07:31:08 | 72.73, 59.38 | 87.20 | 2.43 | 67 |
| 8 | 11/01/2025 | 08:20:45 | -72.73,-133.35 | 92.78 | 11/01/2025 | 08:21:50 | -72.72,-133.31 | 92.79 | 1.86 | 65 |
| 9 | 11/01/2025 | 09:11:31 | 72.72, 33.99 | 87.22 | 11/01/2025 | 09:12:30 | 72.71, 34.00 | 87.21 | 1.19 | 59 |
| 10 | 11/01/2025 | 10:02:14 | -72.69,-158.64 | 92.79 | 11/01/2025 | 10:03:12 | -72.70,-158.69 | 92.79 | 1.77 | 58 |
| 11 | 11/01/2025 | 10:53:00 | 72.68, 8.70 | 87.20 | 11/01/2025 | 10:53:52 | 72.69, 8.62 | 87.21 | 2.99 | 52 |
| 12 | 11/01/2025 | 11:43:44 | -72.70, 175.96 | 92.76 | 11/01/2025 | 11:44:34 | -72.68, 175.93 | 92.79 | 2.89 | 50 |
| 13 | 11/01/2025 | 12:34:30 | 72.69, -16.70 | 87.24 | 11/01/2025 | 12:35:13 | 72.72, -16.66 | 87.26 | 3.19 | 43 |
| 14 | 11/01/2025 | 13:25:14 | -72.72, 150.56 | 92.73 | 11/01/2025 | 13:25:55 | -72.71, 150.65 | 92.74 | 3.03 | 41 |
| 15 | 11/01/2025 | 14:16:00 | 72.70, -42.10 | 87.27 | 11/01/2025 | 14:16:35 | 72.70, -42.04 | 87.27 | 1.81 | 35 |
| 16 | 11/01/2025 | 15:06:43 | -72.68, 125.27 | 92.74 | 11/01/2025 | 15:07:17 | -72.69, 125.27 | 92.73 | 1.50 | 34 |
| 17 | 11/01/2025 | 15:57:29 | 72.66, -67.39 | 87.26 | 11/01/2025 | 15:57:57 | 72.67, -67.43 | 87.27 | 1.91 | 28 |
| 18 | 11/01/2025 | 16:48:13 | -72.69, 99.87 | 92.71 | 11/01/2025 | 16:48:39 | -72.67, 99.89 | 92.73 | 2.12 | 26 |
| 19 | 11/01/2025 | 17:38:59 | 72.67, -92.79 | 87.29 | 11/01/2025 | 17:39:19 | 72.65, -92.81 | 87.27 | 2.21 | 20 |
| 20 | 11/01/2025 | 18:29:42 | -72.65, 74.58 | 92.73 | 11/01/2025 | 18:30:01 | -72.65, 74.51 | 92.73 | 2.27 | 19 |
| 21 | 11/01/2025 | 19:20:29 | 72.69,-118.19 | 87.33 | 11/01/2025 | 19:20:40 | 72.69,-118.08 | 87.32 | 3.35 | 11 |
| 22 | 11/01/2025 | 20:11:12 | -72.66, 49.18 | 92.69 | 11/01/2025 | 20:11:22 | -72.68, 49.23 | 92.68 | 2.78 | 10 |
| 23 | 11/01/2025 | 21:01:57 | 72.65,-143.48 | 87.31 | 11/01/2025 | 21:02:01 | 72.66,-143.47 | 87.32 | 2.09 | 4 |
| 24 | 11/01/2025 | 21:52:41 | -72.67, 23.78 | 92.66 | 11/01/2025 | 21:52:43 | -72.66, 23.85 | 92.67 | 2.65 | 2 |
| 25 | 11/01/2025 | 22:43:27 | 72.66,-168.88 | 87.34 | 11/01/2025 | 22:43:23 | 72.64,-168.85 | 87.33 | 1.83 | 4 |
| 26 | 11/01/2025 | 23:34:10 | -72.63, -1.51 | 92.68 | 11/01/2025 | 23:34:05 | -72.64, -1.53 | 92.67 | 0.95 | 5 |
| 27 | 11/02/2025 | 00:24:56 | 72.62, 165.83 | 87.32 | 11/02/2025 | 00:24:45 | 72.62, 165.77 | 87.33 | 1.99 | 11 |
| 28 | 11/02/2025 | 01:15:40 | -72.65, -26.91 | 92.64 | 11/02/2025 | 01:15:27 | -72.62, -26.91 | 92.67 | 2.81 | 13 |
| 29 | 11/02/2025 | 02:06:26 | 72.63, 140.43 | 87.36 | 11/02/2025 | 02:06:06 | 72.65, 140.49 | 87.38 | 3.34 | 20 |
| 30 | 11/02/2025 | 02:57:09 | -72.61, -52.20 | 92.66 | 11/02/2025 | 02:56:49 | -72.60, -52.29 | 92.66 | 3.02 | 20 |
| 31 | 11/02/2025 | 03:47:56 | 72.64, 115.03 | 87.39 | 11/02/2025 | 03:47:28 | 72.63, 115.11 | 87.38 | 2.82 | 28 |
| 32 | 11/02/2025 | 04:38:39 | -72.62, -77.60 | 92.63 | 11/02/2025 | 04:38:10 | -72.63, -77.57 | 92.61 | 1.74 | 29 |
| 33 | 11/02/2025 | 05:29:25 | 72.60, 89.74 | 87.37 | 11/02/2025 | 05:28:50 | 72.61, 89.73 | 87.39 | 1.11 | 35 |
| 34 | 11/02/2025 | 06:20:09 | -72.63,-103.00 | 92.59 | 11/02/2025 | 06:19:32 | -72.61,-102.95 | 92.61 | 2.69 | 37 |
| 35 | 11/02/2025 | 07:10:55 | 72.62, 64.34 | 87.41 | 11/02/2025 | 07:10:12 | 72.59, 64.35 | 87.39 | 2.54 | 43 |
| 36 | 11/02/2025 | 08:01:38 | -72.59,-128.29 | 92.61 | 11/02/2025 | 08:00:54 | -72.59,-128.33 | 92.61 | 1.27 | 44 |
| 37 | 11/02/2025 | 08:52:24 | 72.58, 39.05 | 87.39 | 11/02/2025 | 08:51:34 | 72.57, 38.97 | 87.39 | 2.63 | 50 |
| 38 | 11/02/2025 | 09:43:08 | -72.60,-153.69 | 92.58 | 11/02/2025 | 09:42:15 | -72.62,-153.61 | 92.56 | 3.39 | 53 |
| 39 | 11/02/2025 | 10:33:54 | 72.59, 13.65 | 87.43 | 11/02/2025 | 10:32:55 | 72.60, 13.69 | 87.44 | 2.14 | 59 |
| 40 | 11/02/2025 | 11:24:38 | -72.62,-179.09 | 92.54 | 11/02/2025 | 11:23:37 | -72.60,-178.99 | 92.55 | 3.62 | 61 |
| 41 | 11/02/2025 | 12:15:24 | 72.60, -11.75 | 87.46 | 11/02/2025 | 12:14:17 | 72.58, -11.69 | 87.45 | 2.80 | 67 |
| 42 | 11/02/2025 | 13:06:07 | -72.58, 155.62 | 92.56 | 11/02/2025 | 13:04:59 | -72.58, 155.63 | 92.55 | 0.69 | 68 |
| 43 | 11/02/2025 | 13:56:53 | 72.56, -37.04 | 87.44 | 11/02/2025 | 13:55:39 | 72.56, -37.07 | 87.45 | 0.92 | 74 |
| 44 | 11/02/2025 | 14:47:36 | -72.54, 130.32 | 92.58 | 11/02/2025 | 14:46:21 | -72.56, 130.25 | 92.55 | 3.61 | 75 |
| 45 | 11/02/2025 | 15:38:17 | 72.27, -61.83 | 87.16 | 11/02/2025 | 15:37:06 | 72.29, -62.96 | 87.20 | 38.29 | 71 |
| 46 | 11/02/2025 | 16:29:00 | -72.24, 105.53 | 92.86 | 11/02/2025 | 16:27:49 | -72.23, 104.27 | 92.84 | 43.03 | 71 |
| 47 | 11/02/2025 | 17:19:41 | 71.97, -86.64 | 86.88 | 11/02/2025 | 17:18:33 | 72.01, -88.83 | 86.96 | 75.67 | 68 |
| 48 | 11/02/2025 | 18:10:24 | -71.95, 80.72 | 93.14 | 11/02/2025 | 18:09:16 | -71.96, 78.40 | 93.08 | 80.18 | 68 |
Figure of NOAA-21 and METOP-C satellite orbits during SNOs since TLE Epoch: 10/28/2025
Download SNOs between NOAA-21 and METOP-C since TLE EPOCH: 10/28/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-C