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: 8/2/2025
| 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 | 08/14/2025 | 16:31:10 | -75.12, 98.40 | 118.55 | 08/14/2025 | 16:32:15 | -75.08, 101.87 | 118.82 | 99.49 | 65 |
| 2 | 08/14/2025 | 17:21:51 | 74.93, -93.75 | 61.25 | 08/14/2025 | 17:22:59 | 74.89, -91.34 | 61.03 | 69.90 | 68 |
| 3 | 08/14/2025 | 18:12:34 | -74.83, 73.83 | 118.85 | 08/14/2025 | 18:13:43 | -74.78, 75.69 | 119.05 | 54.80 | 69 |
| 4 | 08/14/2025 | 19:03:15 | 74.64,-118.34 | 60.94 | 08/14/2025 | 19:04:27 | 74.58,-117.50 | 60.80 | 25.58 | 72 |
| 5 | 08/14/2025 | 19:53:57 | -74.50, 49.35 | 119.21 | 08/14/2025 | 19:55:11 | -74.47, 49.54 | 119.28 | 6.64 | 74 |
| 6 | 08/14/2025 | 20:44:41 | 74.45,-143.21 | 60.75 | 08/14/2025 | 20:45:51 | 74.46,-143.14 | 60.73 | 2.28 | 70 |
| 7 | 08/14/2025 | 21:35:26 | -74.46, 24.09 | 119.24 | 08/14/2025 | 21:36:33 | -74.45, 24.16 | 119.27 | 2.06 | 67 |
| 8 | 08/14/2025 | 22:26:11 | 74.46,-168.59 | 60.77 | 08/14/2025 | 22:27:13 | 74.45,-168.52 | 60.74 | 2.44 | 62 |
| 9 | 08/14/2025 | 23:16:55 | -74.42, -1.17 | 119.27 | 08/14/2025 | 23:17:55 | -74.44, -1.22 | 119.26 | 3.10 | 60 |
| 10 | 08/15/2025 | 00:07:40 | 74.42, 166.15 | 60.75 | 08/15/2025 | 00:08:35 | 74.43, 166.10 | 60.75 | 2.43 | 55 |
| 11 | 08/15/2025 | 00:58:25 | -74.42, -26.55 | 119.24 | 08/15/2025 | 00:59:17 | -74.42, -26.60 | 119.25 | 1.43 | 52 |
| 12 | 08/15/2025 | 01:49:10 | 74.42, 140.76 | 60.77 | 08/15/2025 | 01:49:57 | 74.42, 140.71 | 60.76 | 1.34 | 47 |
| 13 | 08/15/2025 | 02:39:55 | -74.43, -51.94 | 119.22 | 08/15/2025 | 02:40:39 | -74.41, -51.98 | 119.24 | 2.27 | 44 |
| 14 | 08/15/2025 | 03:30:40 | 74.43, 115.37 | 60.80 | 08/15/2025 | 03:31:19 | 74.40, 115.33 | 60.77 | 2.93 | 39 |
| 15 | 08/15/2025 | 04:21:25 | -74.43, -77.33 | 119.19 | 08/15/2025 | 04:22:00 | -74.44, -77.24 | 119.19 | 3.00 | 35 |
| 16 | 08/15/2025 | 05:12:10 | 74.43, 89.98 | 60.83 | 08/15/2025 | 05:12:40 | 74.43, 90.08 | 60.82 | 2.88 | 30 |
| 17 | 08/15/2025 | 06:02:55 | -74.44,-102.72 | 119.16 | 08/15/2025 | 06:03:22 | -74.43,-102.62 | 119.18 | 3.14 | 27 |
| 18 | 08/15/2025 | 06:53:38 | 74.39, 64.72 | 60.80 | 08/15/2025 | 06:54:01 | 74.42, 64.70 | 60.83 | 3.59 | 23 |
| 19 | 08/15/2025 | 07:44:23 | -74.39,-127.98 | 119.19 | 08/15/2025 | 07:44:43 | -74.41,-128.00 | 119.17 | 2.10 | 20 |
| 20 | 08/15/2025 | 08:35:08 | 74.39, 39.33 | 60.83 | 08/15/2025 | 08:35:23 | 74.40, 39.31 | 60.84 | 1.31 | 15 |
| 21 | 08/15/2025 | 09:25:53 | -74.40,-153.37 | 119.16 | 08/15/2025 | 09:26:05 | -74.39,-153.38 | 119.17 | 0.54 | 12 |
| 22 | 08/15/2025 | 10:16:38 | 74.40, 13.95 | 60.86 | 08/15/2025 | 10:16:45 | 74.39, 13.93 | 60.84 | 1.21 | 7 |
| 23 | 08/15/2025 | 11:07:23 | -74.40,-178.75 | 119.13 | 08/15/2025 | 11:07:27 | -74.38,-178.76 | 119.16 | 2.62 | 4 |
| 24 | 08/15/2025 | 11:58:08 | 74.40, -11.44 | 60.88 | 08/15/2025 | 11:58:07 | 74.37, -11.45 | 60.85 | 3.50 | 1 |
| 25 | 08/15/2025 | 12:48:53 | -74.41, 155.86 | 119.11 | 08/15/2025 | 12:48:48 | -74.41, 155.98 | 119.11 | 3.71 | 5 |
| 26 | 08/15/2025 | 13:39:38 | 74.41, -36.83 | 60.91 | 08/15/2025 | 13:39:28 | 74.40, -36.70 | 60.90 | 3.77 | 10 |
| 27 | 08/15/2025 | 14:30:22 | -74.36, 130.60 | 119.13 | 08/15/2025 | 14:30:10 | -74.40, 130.60 | 119.10 | 3.63 | 12 |
| 28 | 08/15/2025 | 15:21:07 | 74.36, -62.09 | 60.88 | 08/15/2025 | 15:20:50 | 74.39, -62.09 | 60.91 | 2.74 | 17 |
| 29 | 08/15/2025 | 16:11:52 | -74.37, 105.21 | 119.11 | 08/15/2025 | 16:11:32 | -74.38, 105.22 | 119.09 | 1.35 | 20 |
| 30 | 08/15/2025 | 17:02:37 | 74.37, -87.48 | 60.91 | 08/15/2025 | 17:02:12 | 74.37, -87.47 | 60.92 | 0.53 | 25 |
| 31 | 08/15/2025 | 17:53:22 | -74.37, 79.82 | 119.08 | 08/15/2025 | 17:52:54 | -74.37, 79.84 | 119.08 | 1.11 | 28 |
| 32 | 08/15/2025 | 18:44:07 | 74.37,-112.87 | 60.94 | 08/15/2025 | 18:43:34 | 74.36,-112.85 | 60.93 | 2.01 | 33 |
| 33 | 08/15/2025 | 19:34:52 | -74.38, 54.43 | 119.05 | 08/15/2025 | 19:34:16 | -74.35, 54.46 | 119.07 | 3.38 | 36 |
| 34 | 08/15/2025 | 20:25:36 | 74.33,-138.13 | 60.91 | 08/15/2025 | 20:24:56 | 74.34,-138.23 | 60.94 | 3.26 | 40 |
| 35 | 08/15/2025 | 21:16:21 | -74.34, 29.17 | 119.08 | 08/15/2025 | 21:15:38 | -74.33, 29.08 | 119.06 | 2.88 | 43 |
| 36 | 08/15/2025 | 22:07:06 | 74.34,-163.52 | 60.94 | 08/15/2025 | 22:06:18 | 74.33,-163.61 | 60.95 | 3.09 | 48 |
| 37 | 08/15/2025 | 22:57:51 | -74.34, 3.78 | 119.05 | 08/15/2025 | 22:56:59 | -74.37, 3.82 | 119.01 | 3.11 | 52 |
| 38 | 08/15/2025 | 23:48:36 | 74.34, 171.10 | 60.97 | 08/15/2025 | 23:47:39 | 74.36, 171.13 | 61.00 | 2.23 | 57 |
| 39 | 08/16/2025 | 00:39:21 | -74.35, -21.60 | 119.02 | 08/16/2025 | 00:38:21 | -74.35, -21.56 | 119.00 | 1.40 | 60 |
| 40 | 08/16/2025 | 01:30:06 | 74.35, 145.71 | 60.99 | 08/16/2025 | 01:29:01 | 74.34, 145.75 | 61.01 | 1.34 | 65 |
| 41 | 08/16/2025 | 02:20:51 | -74.35, -46.99 | 118.99 | 08/16/2025 | 02:19:43 | -74.34, -46.94 | 118.99 | 2.25 | 68 |
| 42 | 08/16/2025 | 03:11:36 | 74.35, 120.32 | 61.02 | 08/16/2025 | 03:10:23 | 74.33, 120.37 | 61.02 | 3.11 | 73 |
Figure of NOAA-21 and METOP-B satellite orbits during SNOs since TLE Epoch: 8/2/2025
Download SNOs between NOAA-21 and METOP-B since TLE EPOCH: 08/02/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-B