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: 9/23/2025
| 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 | 02:14:17 | 74.98, 133.00 | 80.32 | 10/06/2025 | 02:15:24 | 74.96, 135.66 | 80.18 | 76.96 | 67 |
| 2 | 10/06/2025 | 03:05:00 | -74.95, -59.59 | 99.71 | 10/06/2025 | 03:06:08 | -74.89, -57.20 | 99.88 | 69.31 | 68 |
| 3 | 10/06/2025 | 03:55:41 | 74.70, 108.40 | 80.03 | 10/06/2025 | 03:56:52 | 74.65, 109.47 | 79.93 | 31.85 | 71 |
| 4 | 10/06/2025 | 04:46:23 | -74.62, -84.06 | 100.05 | 10/06/2025 | 04:47:36 | -74.58, -83.38 | 100.13 | 20.25 | 73 |
| 5 | 10/06/2025 | 05:37:06 | 74.47, 83.66 | 79.80 | 10/06/2025 | 05:38:17 | 74.49, 83.69 | 79.80 | 2.41 | 71 |
| 6 | 10/06/2025 | 06:27:50 | -74.48,-109.07 | 100.18 | 10/06/2025 | 06:29:00 | -74.47,-109.03 | 100.20 | 1.91 | 70 |
| 7 | 10/06/2025 | 07:18:36 | 74.47, 58.26 | 79.84 | 10/06/2025 | 07:19:39 | 74.47, 58.30 | 79.81 | 1.57 | 63 |
| 8 | 10/06/2025 | 08:09:19 | -74.44,-134.34 | 100.19 | 10/06/2025 | 08:10:22 | -74.45,-134.42 | 100.19 | 2.67 | 63 |
| 9 | 10/06/2025 | 09:00:05 | 74.44, 32.99 | 79.82 | 10/06/2025 | 09:01:01 | 74.45, 32.91 | 79.82 | 2.76 | 56 |
| 10 | 10/06/2025 | 09:50:49 | -74.45,-159.73 | 100.16 | 10/06/2025 | 09:51:43 | -74.48,-159.69 | 100.14 | 3.16 | 54 |
| 11 | 10/06/2025 | 10:41:34 | 74.44, 7.59 | 79.85 | 10/06/2025 | 10:42:22 | 74.43, 7.51 | 79.83 | 3.09 | 48 |
| 12 | 10/06/2025 | 11:32:18 | -74.46, 174.87 | 100.12 | 10/06/2025 | 11:33:04 | -74.46, 174.92 | 100.13 | 1.52 | 46 |
| 13 | 10/06/2025 | 12:23:04 | 74.45, -17.80 | 79.89 | 10/06/2025 | 12:23:43 | 74.45, -17.75 | 79.88 | 1.61 | 39 |
| 14 | 10/06/2025 | 13:13:47 | -74.42, 149.60 | 100.14 | 10/06/2025 | 13:14:26 | -74.44, 149.53 | 100.12 | 2.86 | 39 |
| 15 | 10/06/2025 | 14:04:33 | 74.41, -43.07 | 79.87 | 10/06/2025 | 14:05:05 | 74.43, -43.14 | 79.89 | 3.19 | 32 |
| 16 | 10/06/2025 | 14:55:17 | -74.43, 124.20 | 100.10 | 10/06/2025 | 14:55:48 | -74.42, 124.13 | 100.11 | 2.42 | 31 |
| 17 | 10/06/2025 | 15:46:03 | 74.42, -68.47 | 79.91 | 10/06/2025 | 15:46:27 | 74.41, -68.54 | 79.90 | 2.09 | 24 |
| 18 | 10/06/2025 | 16:36:47 | -74.44, 98.80 | 100.06 | 10/06/2025 | 16:37:09 | -74.45, 98.87 | 100.06 | 2.10 | 22 |
| 19 | 10/06/2025 | 17:27:33 | 74.43, -93.87 | 79.95 | 10/06/2025 | 17:27:48 | 74.44, -93.80 | 79.95 | 2.45 | 15 |
| 20 | 10/06/2025 | 18:18:17 | -74.45, 73.41 | 100.03 | 10/06/2025 | 18:18:31 | -74.43, 73.48 | 100.05 | 3.09 | 14 |
| 21 | 10/06/2025 | 19:09:03 | 74.44,-119.27 | 79.98 | 10/06/2025 | 19:09:10 | 74.42,-119.19 | 79.96 | 2.80 | 7 |
| 22 | 10/06/2025 | 19:59:46 | -74.41, 48.14 | 100.04 | 10/06/2025 | 19:59:53 | -74.41, 48.08 | 100.04 | 1.62 | 7 |
| 23 | 10/06/2025 | 20:50:32 | 74.40,-144.53 | 79.97 | 10/06/2025 | 20:50:32 | 74.40,-144.59 | 79.97 | 1.58 | 0 |
| 24 | 10/06/2025 | 21:41:16 | -74.42, 22.74 | 100.01 | 10/06/2025 | 21:41:14 | -74.43, 22.82 | 99.99 | 3.10 | 2 |
| 25 | 10/06/2025 | 22:32:02 | 74.41,-169.93 | 80.00 | 10/06/2025 | 22:31:54 | 74.38,-169.98 | 79.98 | 3.18 | 8 |
| 26 | 10/06/2025 | 23:22:46 | -74.42, -2.66 | 99.97 | 10/06/2025 | 23:22:36 | -74.41, -2.57 | 99.98 | 2.70 | 10 |
| 27 | 10/07/2025 | 00:13:32 | 74.42, 164.67 | 80.04 | 10/07/2025 | 00:13:15 | 74.41, 164.76 | 80.03 | 2.61 | 17 |
| 28 | 10/07/2025 | 01:04:15 | -74.38, -27.93 | 99.99 | 10/07/2025 | 01:03:58 | -74.39, -27.97 | 99.98 | 1.58 | 17 |
| 29 | 10/07/2025 | 01:55:01 | 74.38, 139.40 | 80.02 | 10/07/2025 | 01:54:37 | 74.39, 139.36 | 80.04 | 1.90 | 24 |
| 30 | 10/07/2025 | 02:45:45 | -74.39, -53.32 | 99.95 | 10/07/2025 | 02:45:20 | -74.37, -53.36 | 99.97 | 2.46 | 25 |
| 31 | 10/07/2025 | 03:36:31 | 74.39, 114.00 | 80.06 | 10/07/2025 | 03:35:59 | 74.37, 113.97 | 80.05 | 2.00 | 32 |
| 32 | 10/07/2025 | 04:27:15 | -74.40, -78.72 | 99.92 | 10/07/2025 | 04:26:41 | -74.40, -78.63 | 99.91 | 2.83 | 34 |
| 33 | 10/07/2025 | 05:18:01 | 74.39, 88.61 | 80.09 | 10/07/2025 | 05:17:20 | 74.40, 88.70 | 80.10 | 2.95 | 41 |
| 34 | 10/07/2025 | 06:08:44 | -74.36,-103.99 | 99.93 | 10/07/2025 | 06:08:03 | -74.38,-104.02 | 99.91 | 2.29 | 41 |
| 35 | 10/07/2025 | 06:59:30 | 74.35, 63.34 | 80.08 | 10/07/2025 | 06:58:42 | 74.38, 63.31 | 80.11 | 2.74 | 48 |
| 36 | 10/07/2025 | 07:50:14 | -74.37,-129.39 | 99.90 | 10/07/2025 | 07:49:25 | -74.36,-129.41 | 99.90 | 1.30 | 49 |
| 37 | 10/07/2025 | 08:41:00 | 74.36, 37.94 | 80.11 | 10/07/2025 | 08:40:04 | 74.36, 37.92 | 80.12 | 0.89 | 56 |
| 38 | 10/07/2025 | 09:31:44 | -74.38,-154.79 | 99.86 | 10/07/2025 | 09:30:46 | -74.39,-154.68 | 99.85 | 3.39 | 58 |
| 39 | 10/07/2025 | 10:22:30 | 74.37, 12.54 | 80.15 | 10/07/2025 | 10:21:25 | 74.39, 12.65 | 80.17 | 3.63 | 65 |
| 40 | 10/07/2025 | 11:13:13 | -74.34, 179.94 | 99.88 | 10/07/2025 | 11:12:08 | -74.37, 179.93 | 99.84 | 3.25 | 65 |
| 41 | 10/07/2025 | 12:03:59 | 74.33, -12.73 | 80.13 | 10/07/2025 | 12:02:47 | 74.37, -12.74 | 80.18 | 3.72 | 72 |
| 42 | 10/07/2025 | 12:54:43 | -74.35, 154.55 | 99.84 | 10/07/2025 | 12:53:30 | -74.35, 154.54 | 99.83 | 0.30 | 73 |
| 43 | 10/07/2025 | 13:45:25 | 74.15, -37.63 | 79.96 | 10/07/2025 | 13:44:13 | 74.15, -38.63 | 80.01 | 30.52 | 72 |
| 44 | 10/07/2025 | 14:36:08 | -74.11, 129.77 | 100.07 | 10/07/2025 | 14:34:56 | -74.13, 128.65 | 99.99 | 34.15 | 72 |
| 45 | 10/07/2025 | 15:26:48 | 73.81, -62.18 | 79.62 | 10/07/2025 | 15:25:41 | 73.83, -64.74 | 79.76 | 79.64 | 67 |
| 46 | 10/07/2025 | 16:17:31 | -73.78, 105.22 | 100.41 | 10/07/2025 | 16:16:24 | -73.82, 102.54 | 100.24 | 83.09 | 67 |
Figure of NOAA-21 and METOP-B satellite orbits during SNOs since TLE Epoch: 9/23/2025
Download SNOs between NOAA-21 and METOP-B since TLE EPOCH: 09/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-B