Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and METOP-B Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/24/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (METOP-B) | Time (METOP-B) | Lat,Lon (METOP-B) | SZA (METOP-B ) | Distance(km) | Time Diff (sec) |
| 1 | 10/06/2025 | 02:14:18 | 75.05, 132.80 | 80.39 | 10/06/2025 | 02:15:24 | 74.99, 135.73 | 80.20 | 84.49 | 66 |
| 2 | 10/06/2025 | 03:05:00 | -74.97, -59.65 | 99.69 | 10/06/2025 | 03:06:08 | -74.92, -57.14 | 99.86 | 72.70 | 68 |
| 3 | 10/06/2025 | 03:55:41 | 74.72, 108.34 | 80.05 | 10/06/2025 | 03:56:52 | 74.68, 109.53 | 79.95 | 35.21 | 71 |
| 4 | 10/06/2025 | 04:46:24 | -74.69, -84.25 | 99.97 | 10/06/2025 | 04:47:36 | -74.61, -83.33 | 100.11 | 28.58 | 72 |
| 5 | 10/06/2025 | 05:37:06 | 74.49, 83.60 | 79.82 | 10/06/2025 | 05:38:18 | 74.46, 83.62 | 79.78 | 2.99 | 72 |
| 6 | 10/06/2025 | 06:27:49 | -74.46,-109.00 | 100.20 | 10/06/2025 | 06:29:01 | -74.44,-109.10 | 100.23 | 3.42 | 72 |
| 7 | 10/06/2025 | 07:18:35 | 74.45, 58.33 | 79.81 | 10/06/2025 | 07:19:40 | 74.44, 58.23 | 79.79 | 3.02 | 65 |
| 8 | 10/06/2025 | 08:09:19 | -74.46,-134.40 | 100.17 | 10/06/2025 | 08:10:22 | -74.47,-134.37 | 100.17 | 1.18 | 63 |
| 9 | 10/06/2025 | 09:00:05 | 74.46, 32.93 | 79.84 | 10/06/2025 | 09:01:01 | 74.47, 32.97 | 79.84 | 1.90 | 56 |
| 10 | 10/06/2025 | 09:50:49 | -74.47,-159.79 | 100.13 | 10/06/2025 | 09:51:44 | -74.45,-159.76 | 100.16 | 2.57 | 55 |
| 11 | 10/06/2025 | 10:41:35 | 74.47, 7.54 | 79.88 | 10/06/2025 | 10:42:23 | 74.45, 7.58 | 79.85 | 1.97 | 48 |
| 12 | 10/06/2025 | 11:32:18 | -74.43, 174.94 | 100.15 | 10/06/2025 | 11:33:06 | -74.43, 174.85 | 100.15 | 2.61 | 48 |
| 13 | 10/06/2025 | 12:23:04 | 74.43, -17.73 | 79.86 | 10/06/2025 | 12:23:45 | 74.43, -17.82 | 79.86 | 2.56 | 41 |
| 14 | 10/06/2025 | 13:13:48 | -74.44, 149.54 | 100.11 | 10/06/2025 | 13:14:27 | -74.46, 149.58 | 100.10 | 2.51 | 39 |
| 15 | 10/06/2025 | 14:04:34 | 74.43, -43.13 | 79.90 | 10/06/2025 | 14:05:06 | 74.46, -43.08 | 79.92 | 3.27 | 32 |
| 16 | 10/06/2025 | 14:55:18 | -74.45, 124.14 | 100.08 | 10/06/2025 | 14:55:49 | -74.44, 124.19 | 100.09 | 1.83 | 31 |
| 17 | 10/06/2025 | 15:46:04 | 74.44, -68.53 | 79.93 | 10/06/2025 | 15:46:28 | 74.44, -68.47 | 79.92 | 1.66 | 24 |
| 18 | 10/06/2025 | 16:36:47 | -74.41, 98.87 | 100.09 | 10/06/2025 | 16:37:11 | -74.42, 98.80 | 100.08 | 2.43 | 24 |
| 19 | 10/06/2025 | 17:27:33 | 74.40, -93.80 | 79.92 | 10/06/2025 | 17:27:50 | 74.42, -93.86 | 79.93 | 2.80 | 17 |
| 20 | 10/06/2025 | 18:18:17 | -74.42, 73.48 | 100.06 | 10/06/2025 | 18:18:33 | -74.40, 73.41 | 100.07 | 2.82 | 16 |
| 21 | 10/06/2025 | 19:09:03 | 74.41,-119.19 | 79.95 | 10/06/2025 | 19:09:12 | 74.40,-119.26 | 79.94 | 2.24 | 9 |
| 22 | 10/06/2025 | 19:59:47 | -74.43, 48.08 | 100.02 | 10/06/2025 | 19:59:54 | -74.43, 48.14 | 100.02 | 1.97 | 7 |
| 23 | 10/06/2025 | 20:50:33 | 74.42,-144.59 | 79.99 | 10/06/2025 | 20:50:33 | 74.43,-144.52 | 80.00 | 2.30 | 0 |
| 24 | 10/06/2025 | 21:41:16 | -74.39, 22.81 | 100.04 | 10/06/2025 | 21:41:16 | -74.41, 22.75 | 100.01 | 2.95 | 0 |
| 25 | 10/06/2025 | 22:32:03 | 74.43,-169.99 | 80.03 | 10/06/2025 | 22:31:55 | 74.41,-169.91 | 80.00 | 3.16 | 8 |
| 26 | 10/06/2025 | 23:22:46 | -74.40, -2.59 | 100.00 | 10/06/2025 | 23:22:38 | -74.39, -2.64 | 100.00 | 1.70 | 8 |
| 27 | 10/07/2025 | 00:13:32 | 74.39, 164.74 | 80.01 | 10/07/2025 | 00:13:17 | 74.39, 164.69 | 80.01 | 1.41 | 15 |
| 28 | 10/07/2025 | 01:04:16 | -74.41, -27.98 | 99.96 | 10/07/2025 | 01:03:59 | -74.42, -27.90 | 99.95 | 2.81 | 17 |
| 29 | 10/07/2025 | 01:55:02 | 74.40, 139.34 | 80.05 | 10/07/2025 | 01:54:38 | 74.42, 139.43 | 80.07 | 3.35 | 24 |
| 30 | 10/07/2025 | 02:45:46 | -74.42, -53.38 | 99.93 | 10/07/2025 | 02:45:21 | -74.40, -53.30 | 99.94 | 3.10 | 25 |
| 31 | 10/07/2025 | 03:36:32 | 74.41, 113.95 | 80.08 | 10/07/2025 | 03:36:00 | 74.40, 114.04 | 80.07 | 2.86 | 32 |
| 32 | 10/07/2025 | 04:27:15 | -74.38, -78.65 | 99.95 | 10/07/2025 | 04:26:43 | -74.38, -78.69 | 99.93 | 1.16 | 32 |
| 33 | 10/07/2025 | 05:18:01 | 74.37, 88.68 | 80.06 | 10/07/2025 | 05:17:22 | 74.38, 88.64 | 80.08 | 1.52 | 39 |
| 34 | 10/07/2025 | 06:08:45 | -74.38,-104.05 | 99.91 | 10/07/2025 | 06:08:05 | -74.36,-104.08 | 99.93 | 2.92 | 40 |
| 35 | 10/07/2025 | 06:59:31 | 74.38, 63.28 | 80.10 | 10/07/2025 | 06:58:44 | 74.36, 63.25 | 80.09 | 2.22 | 47 |
| 36 | 10/07/2025 | 07:50:15 | -74.39,-129.45 | 99.87 | 10/07/2025 | 07:49:26 | -74.39,-129.35 | 99.87 | 3.05 | 49 |
| 37 | 10/07/2025 | 08:41:01 | 74.38, 37.88 | 80.14 | 10/07/2025 | 08:40:05 | 74.39, 37.99 | 80.14 | 3.11 | 56 |
| 38 | 10/07/2025 | 09:31:44 | -74.35,-154.72 | 99.89 | 10/07/2025 | 09:30:48 | -74.37,-154.74 | 99.86 | 1.73 | 56 |
| 39 | 10/07/2025 | 10:22:30 | 74.35, 12.61 | 80.12 | 10/07/2025 | 10:21:27 | 74.37, 12.59 | 80.15 | 2.39 | 63 |
| 40 | 10/07/2025 | 11:13:14 | -74.36, 179.89 | 99.85 | 10/07/2025 | 11:12:10 | -74.35, 179.87 | 99.86 | 1.69 | 64 |
| 41 | 10/07/2025 | 12:04:00 | 74.35, -12.78 | 80.16 | 10/07/2025 | 12:02:49 | 74.35, -12.80 | 80.16 | 1.00 | 71 |
| 42 | 10/07/2025 | 12:54:43 | -74.37, 154.49 | 99.82 | 10/07/2025 | 12:53:30 | -74.38, 154.60 | 99.80 | 3.47 | 73 |
| 43 | 10/07/2025 | 13:45:25 | 74.17, -37.68 | 79.98 | 10/07/2025 | 13:44:13 | 74.18, -38.56 | 80.04 | 26.77 | 72 |
| 44 | 10/07/2025 | 14:36:08 | -74.14, 129.71 | 100.05 | 10/07/2025 | 14:34:56 | -74.16, 128.72 | 99.97 | 30.47 | 72 |
| 45 | 10/07/2025 | 15:26:49 | 73.88, -62.35 | 79.69 | 10/07/2025 | 15:25:41 | 73.86, -64.68 | 79.79 | 72.05 | 68 |
| 46 | 10/07/2025 | 16:17:32 | -73.85, 105.04 | 100.33 | 10/07/2025 | 16:16:24 | -73.84, 102.60 | 100.22 | 75.45 | 68 |
Figure of NOAA-21 and METOP-B satellite orbits during SNOs since TLE Epoch: 9/24/2025
Download SNOs between NOAA-21 and METOP-B since TLE EPOCH: 09/24/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-B