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: 8/3/2025
| 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 | 16:31:09 | -75.11, 98.42 | 118.55 | 08/14/2025 | 16:32:14 | -75.10, 101.91 | 118.81 | 99.90 | 65 |
| 2 | 08/14/2025 | 17:21:51 | 74.97, -93.87 | 61.30 | 08/14/2025 | 17:22:58 | 74.90, -91.30 | 61.04 | 74.46 | 67 |
| 3 | 08/14/2025 | 18:12:33 | -74.83, 73.84 | 118.86 | 08/14/2025 | 18:13:42 | -74.79, 75.73 | 119.04 | 55.08 | 69 |
| 4 | 08/14/2025 | 19:03:14 | 74.64,-118.32 | 60.93 | 08/14/2025 | 19:04:26 | 74.59,-117.47 | 60.81 | 25.54 | 72 |
| 5 | 08/14/2025 | 19:53:56 | -74.50, 49.37 | 119.22 | 08/14/2025 | 19:55:10 | -74.48, 49.57 | 119.27 | 6.29 | 74 |
| 6 | 08/14/2025 | 20:44:40 | 74.45,-143.19 | 60.74 | 08/14/2025 | 20:45:51 | 74.43,-143.23 | 60.70 | 2.50 | 71 |
| 7 | 08/14/2025 | 21:35:25 | -74.45, 24.11 | 119.25 | 08/14/2025 | 21:36:32 | -74.47, 24.19 | 119.26 | 2.94 | 67 |
| 8 | 08/14/2025 | 22:26:10 | 74.45,-168.58 | 60.77 | 08/14/2025 | 22:27:12 | 74.46,-168.49 | 60.75 | 2.84 | 62 |
| 9 | 08/14/2025 | 23:16:55 | -74.46, -1.28 | 119.22 | 08/14/2025 | 23:17:54 | -74.45, -1.19 | 119.25 | 2.81 | 59 |
| 10 | 08/15/2025 | 00:07:40 | 74.46, 166.03 | 60.79 | 08/15/2025 | 00:08:34 | 74.45, 166.13 | 60.76 | 3.15 | 54 |
| 11 | 08/15/2025 | 00:58:24 | -74.42, -26.54 | 119.25 | 08/15/2025 | 00:59:16 | -74.44, -26.57 | 119.24 | 2.50 | 52 |
| 12 | 08/15/2025 | 01:49:09 | 74.41, 140.77 | 60.77 | 08/15/2025 | 01:49:56 | 74.43, 140.75 | 60.77 | 1.90 | 47 |
| 13 | 08/15/2025 | 02:39:54 | -74.42, -51.93 | 119.22 | 08/15/2025 | 02:40:38 | -74.42, -51.95 | 119.23 | 0.69 | 44 |
| 14 | 08/15/2025 | 03:30:39 | 74.42, 115.39 | 60.79 | 08/15/2025 | 03:31:18 | 74.41, 115.37 | 60.78 | 0.82 | 39 |
| 15 | 08/15/2025 | 04:21:24 | -74.43, -77.32 | 119.19 | 08/15/2025 | 04:22:00 | -74.40, -77.33 | 119.22 | 2.34 | 36 |
| 16 | 08/15/2025 | 05:12:09 | 74.43, 90.00 | 60.82 | 08/15/2025 | 05:12:40 | 74.40, 89.99 | 60.79 | 2.96 | 31 |
| 17 | 08/15/2025 | 06:02:54 | -74.43,-102.70 | 119.17 | 08/15/2025 | 06:03:21 | -74.44,-102.59 | 119.17 | 3.56 | 27 |
| 18 | 08/15/2025 | 06:53:39 | 74.43, 64.61 | 60.85 | 08/15/2025 | 06:54:01 | 74.43, 64.73 | 60.84 | 3.59 | 22 |
| 19 | 08/15/2025 | 07:44:24 | -74.44,-128.09 | 119.14 | 08/15/2025 | 07:44:43 | -74.42,-127.97 | 119.16 | 3.94 | 19 |
| 20 | 08/15/2025 | 08:35:08 | 74.39, 39.35 | 60.82 | 08/15/2025 | 08:35:23 | 74.42, 39.35 | 60.85 | 3.28 | 15 |
| 21 | 08/15/2025 | 09:25:53 | -74.39,-153.35 | 119.17 | 08/15/2025 | 09:26:05 | -74.41,-153.35 | 119.16 | 1.63 | 12 |
| 22 | 08/15/2025 | 10:16:38 | 74.39, 13.96 | 60.85 | 08/15/2025 | 10:16:45 | 74.40, 13.97 | 60.85 | 0.95 | 7 |
| 23 | 08/15/2025 | 11:07:23 | -74.40,-178.74 | 119.14 | 08/15/2025 | 11:07:27 | -74.39,-178.73 | 119.15 | 0.75 | 4 |
| 24 | 08/15/2025 | 11:58:08 | 74.40, -11.43 | 60.88 | 08/15/2025 | 11:58:07 | 74.38, -11.41 | 60.86 | 1.45 | 1 |
| 25 | 08/15/2025 | 12:48:53 | -74.40, 155.87 | 119.11 | 08/15/2025 | 12:48:49 | -74.38, 155.89 | 119.14 | 3.05 | 4 |
| 26 | 08/15/2025 | 13:39:37 | 74.35, -36.69 | 60.85 | 08/15/2025 | 13:39:29 | 74.37, -36.80 | 60.87 | 3.63 | 8 |
| 27 | 08/15/2025 | 14:30:22 | -74.36, 130.61 | 119.14 | 08/15/2025 | 14:30:11 | -74.36, 130.51 | 119.13 | 3.09 | 11 |
| 28 | 08/15/2025 | 15:21:07 | 74.36, -62.08 | 60.88 | 08/15/2025 | 15:20:51 | 74.35, -62.18 | 60.88 | 3.10 | 16 |
| 29 | 08/15/2025 | 16:11:52 | -74.36, 105.22 | 119.11 | 08/15/2025 | 16:11:32 | -74.39, 105.25 | 119.08 | 3.32 | 20 |
| 30 | 08/15/2025 | 17:02:37 | 74.36, -87.46 | 60.90 | 08/15/2025 | 17:02:12 | 74.39, -87.43 | 60.93 | 2.63 | 25 |
| 31 | 08/15/2025 | 17:53:22 | -74.37, 79.83 | 119.08 | 08/15/2025 | 17:52:54 | -74.38, 79.87 | 119.07 | 1.38 | 28 |
| 32 | 08/15/2025 | 18:44:07 | 74.37,-112.85 | 60.93 | 08/15/2025 | 18:43:34 | 74.37,-112.82 | 60.94 | 1.13 | 33 |
| 33 | 08/15/2025 | 19:34:52 | -74.37, 54.45 | 119.06 | 08/15/2025 | 19:34:16 | -74.36, 54.49 | 119.06 | 1.91 | 36 |
| 34 | 08/15/2025 | 20:25:37 | 74.37,-138.24 | 60.96 | 08/15/2025 | 20:24:56 | 74.35,-138.20 | 60.95 | 2.60 | 41 |
| 35 | 08/15/2025 | 21:16:21 | -74.33, 29.18 | 119.08 | 08/15/2025 | 21:15:38 | -74.35, 29.11 | 119.05 | 2.84 | 43 |
| 36 | 08/15/2025 | 22:07:06 | 74.33,-163.50 | 60.93 | 08/15/2025 | 22:06:18 | 74.34,-163.58 | 60.96 | 2.42 | 48 |
| 37 | 08/15/2025 | 22:57:51 | -74.34, 3.80 | 119.05 | 08/15/2025 | 22:57:00 | -74.33, 3.73 | 119.04 | 2.20 | 51 |
| 38 | 08/15/2025 | 23:48:36 | 74.34, 171.11 | 60.96 | 08/15/2025 | 23:47:40 | 74.32, 171.04 | 60.97 | 2.55 | 56 |
| 39 | 08/16/2025 | 00:39:21 | -74.34, -21.59 | 119.03 | 08/16/2025 | 00:38:21 | -74.36, -21.53 | 118.99 | 3.07 | 60 |
| 40 | 08/16/2025 | 01:30:06 | 74.34, 145.72 | 60.99 | 08/16/2025 | 01:29:01 | 74.36, 145.78 | 61.02 | 2.48 | 65 |
| 41 | 08/16/2025 | 02:20:51 | -74.35, -46.98 | 119.00 | 08/16/2025 | 02:19:43 | -74.35, -46.91 | 118.98 | 2.05 | 68 |
| 42 | 08/16/2025 | 03:11:36 | 74.35, 120.33 | 61.02 | 08/16/2025 | 03:10:23 | 74.34, 120.40 | 61.03 | 2.21 | 73 |
| 43 | 08/16/2025 | 04:02:20 | -74.30, -72.24 | 119.03 | 08/16/2025 | 04:01:05 | -74.33, -72.29 | 118.97 | 3.56 | 75 |
| 44 | 08/16/2025 | 04:53:01 | 74.11, 95.57 | 60.77 | 08/16/2025 | 04:51:49 | 74.13, 94.53 | 60.88 | 31.64 | 72 |
| 45 | 08/16/2025 | 05:43:44 | -74.02, -96.89 | 119.33 | 08/16/2025 | 05:42:33 | -74.02, -98.40 | 119.20 | 46.22 | 71 |
| 46 | 08/16/2025 | 06:34:25 | 73.82, 70.90 | 60.46 | 08/16/2025 | 06:33:17 | 73.81, 68.44 | 60.65 | 76.49 | 68 |
| 47 | 08/16/2025 | 07:25:07 | -73.68,-121.45 | 119.69 | 08/16/2025 | 07:24:01 | -73.71,-124.48 | 119.43 | 94.78 | 66 |
Figure of NOAA-21 and METOP-B satellite orbits during SNOs since TLE Epoch: 8/3/2025
Download SNOs between NOAA-21 and METOP-B since TLE EPOCH: 08/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-B