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: 4/22/2025
| 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 | 05/03/2025 | 14:28:57 | 74.64, -49.73 | 59.05 | 05/03/2025 | 14:30:05 | 74.60, -47.38 | 58.87 | 69.22 | 68 |
| 2 | 05/03/2025 | 15:19:40 | -74.57, 117.78 | 121.05 | 05/03/2025 | 15:20:49 | -74.50, 119.68 | 121.23 | 56.70 | 69 |
| 3 | 05/03/2025 | 16:10:21 | 74.36, -74.36 | 58.71 | 05/03/2025 | 16:11:33 | 74.29, -73.53 | 58.58 | 26.27 | 72 |
| 4 | 05/03/2025 | 17:01:03 | -74.24, 93.26 | 121.44 | 05/03/2025 | 17:02:17 | -74.19, 93.55 | 121.52 | 10.27 | 74 |
| 5 | 05/03/2025 | 17:51:47 | 74.18, -99.27 | 58.49 | 05/03/2025 | 17:52:57 | 74.17, -99.17 | 58.46 | 3.23 | 70 |
| 6 | 05/03/2025 | 18:42:31 | -74.15, 68.11 | 121.56 | 05/03/2025 | 18:43:39 | -74.17, 68.16 | 121.56 | 2.36 | 68 |
| 7 | 05/03/2025 | 19:33:16 | 74.14,-124.55 | 58.42 | 05/03/2025 | 19:34:19 | 74.15,-124.55 | 58.42 | 1.00 | 63 |
| 8 | 05/03/2025 | 20:24:01 | -74.17, 42.70 | 121.56 | 05/03/2025 | 20:25:01 | -74.15, 42.77 | 121.60 | 2.85 | 60 |
| 9 | 05/03/2025 | 21:14:46 | 74.15,-149.96 | 58.42 | 05/03/2025 | 21:15:41 | 74.13,-149.94 | 58.38 | 2.59 | 55 |
| 10 | 05/03/2025 | 22:05:30 | -74.13, 17.42 | 121.62 | 05/03/2025 | 22:06:23 | -74.13, 17.38 | 121.63 | 1.02 | 53 |
| 11 | 05/03/2025 | 22:56:15 | 74.12,-175.24 | 58.36 | 05/03/2025 | 22:57:03 | 74.11,-175.33 | 58.34 | 2.89 | 48 |
| 12 | 05/03/2025 | 23:47:00 | -74.14, -7.99 | 121.63 | 05/03/2025 | 23:47:45 | -74.11, -8.00 | 121.67 | 3.50 | 45 |
| 13 | 05/04/2025 | 00:37:45 | 74.13, 159.36 | 58.35 | 05/04/2025 | 00:38:24 | 74.14, 159.40 | 58.35 | 1.91 | 39 |
| 14 | 05/04/2025 | 01:28:29 | -74.11, -33.27 | 121.69 | 05/04/2025 | 01:29:06 | -74.14, -33.27 | 121.66 | 3.93 | 37 |
| 15 | 05/04/2025 | 02:19:15 | 74.14, 133.95 | 58.34 | 05/04/2025 | 02:19:46 | 74.12, 134.01 | 58.31 | 2.99 | 31 |
| 16 | 05/04/2025 | 03:09:59 | -74.12, -58.68 | 121.70 | 05/04/2025 | 03:10:28 | -74.12, -58.66 | 121.70 | 0.67 | 29 |
| 17 | 05/04/2025 | 04:00:44 | 74.11, 108.67 | 58.28 | 05/04/2025 | 04:01:08 | 74.10, 108.63 | 58.28 | 1.33 | 24 |
| 18 | 05/04/2025 | 04:51:28 | -74.13, -84.08 | 121.70 | 05/04/2025 | 04:51:49 | -74.10, -84.05 | 121.74 | 3.34 | 21 |
| 19 | 05/04/2025 | 05:42:13 | 74.12, 83.26 | 58.28 | 05/04/2025 | 05:42:28 | 74.13, 83.36 | 58.28 | 3.32 | 15 |
| 20 | 05/04/2025 | 06:32:57 | -74.10,-109.37 | 121.76 | 05/04/2025 | 06:33:11 | -74.09,-109.43 | 121.77 | 2.44 | 14 |
| 21 | 05/04/2025 | 07:23:42 | 74.08, 57.98 | 58.22 | 05/04/2025 | 07:23:50 | 74.11, 57.97 | 58.24 | 3.47 | 8 |
| 22 | 05/04/2025 | 08:14:27 | -74.11,-134.77 | 121.77 | 05/04/2025 | 08:14:32 | -74.12,-134.70 | 121.77 | 2.22 | 5 |
| 23 | 05/04/2025 | 09:05:12 | 74.10, 32.57 | 58.21 | 05/04/2025 | 09:05:12 | 74.10, 32.58 | 58.21 | 0.28 | 0 |
| 24 | 05/04/2025 | 09:55:56 | -74.07,-160.05 | 121.83 | 05/04/2025 | 09:55:54 | -74.10,-160.09 | 121.81 | 2.79 | 2 |
| 25 | 05/04/2025 | 10:46:41 | 74.06, 7.29 | 58.15 | 05/04/2025 | 10:46:34 | 74.08, 7.19 | 58.17 | 3.44 | 7 |
| 26 | 05/04/2025 | 11:37:26 | -74.09, 174.54 | 121.84 | 05/04/2025 | 11:37:16 | -74.08, 174.52 | 121.84 | 1.10 | 10 |
| 27 | 05/04/2025 | 12:28:11 | 74.07, -18.11 | 58.14 | 05/04/2025 | 12:27:56 | 74.06, -18.19 | 58.13 | 3.02 | 15 |
| 28 | 05/04/2025 | 13:18:55 | -74.05, 149.26 | 121.90 | 05/04/2025 | 13:18:38 | -74.06, 149.14 | 121.88 | 3.81 | 17 |
| 29 | 05/04/2025 | 14:09:41 | 74.09, -43.52 | 58.14 | 05/04/2025 | 14:09:17 | 74.09, -43.46 | 58.14 | 1.80 | 24 |
| 30 | 05/04/2025 | 15:00:25 | -74.06, 123.85 | 121.90 | 05/04/2025 | 14:59:59 | -74.09, 123.87 | 121.87 | 2.91 | 26 |
| 31 | 05/04/2025 | 15:51:10 | 74.05, -68.80 | 58.08 | 05/04/2025 | 15:50:39 | 74.07, -68.85 | 58.10 | 2.46 | 31 |
| 32 | 05/04/2025 | 16:41:55 | -74.08, 98.45 | 121.91 | 05/04/2025 | 16:41:21 | -74.07, 98.48 | 121.91 | 1.27 | 34 |
| 33 | 05/04/2025 | 17:32:40 | 74.06, -94.21 | 58.07 | 05/04/2025 | 17:32:01 | 74.05, -94.24 | 58.07 | 1.80 | 39 |
| 34 | 05/04/2025 | 18:23:24 | -74.04, 73.16 | 121.97 | 05/04/2025 | 18:22:43 | -74.05, 73.09 | 121.95 | 2.43 | 41 |
| 35 | 05/04/2025 | 19:14:10 | 74.07,-119.61 | 58.06 | 05/04/2025 | 19:13:22 | 74.08,-119.50 | 58.07 | 3.35 | 48 |
| 36 | 05/04/2025 | 20:04:54 | -74.05, 47.76 | 121.98 | 05/04/2025 | 20:04:05 | -74.03, 47.71 | 121.98 | 2.84 | 49 |
| 37 | 05/04/2025 | 20:55:39 | 74.04,-144.90 | 58.00 | 05/04/2025 | 20:54:44 | 74.06,-144.89 | 58.03 | 2.25 | 55 |
| 38 | 05/04/2025 | 21:46:24 | -74.06, 22.35 | 121.98 | 05/04/2025 | 21:45:26 | -74.06, 22.44 | 121.98 | 2.67 | 58 |
| 39 | 05/04/2025 | 22:37:09 | 74.05,-170.30 | 58.00 | 05/04/2025 | 22:36:06 | 74.04,-170.28 | 58.00 | 1.51 | 63 |
| 40 | 05/04/2025 | 23:27:53 | -74.03, -2.93 | 122.04 | 05/04/2025 | 23:26:48 | -74.04, -2.95 | 122.01 | 1.54 | 65 |
| 41 | 05/05/2025 | 00:18:38 | 74.01, 164.41 | 57.94 | 05/05/2025 | 00:17:28 | 74.02, 164.33 | 57.96 | 2.57 | 70 |
| 42 | 05/05/2025 | 01:09:23 | -74.04, -28.34 | 122.05 | 05/05/2025 | 01:08:10 | -74.02, -28.34 | 122.05 | 2.13 | 73 |
| 43 | 05/05/2025 | 02:00:05 | 73.88, 139.37 | 57.76 | 05/05/2025 | 01:58:52 | 73.90, 138.71 | 57.84 | 20.62 | 73 |
| 44 | 05/05/2025 | 02:50:48 | -73.81, -53.14 | 122.33 | 05/05/2025 | 02:49:36 | -73.80, -54.20 | 122.26 | 32.59 | 72 |
| 45 | 05/05/2025 | 03:41:29 | 73.59, 114.67 | 57.43 | 05/05/2025 | 03:40:20 | 73.58, 112.62 | 57.55 | 64.34 | 69 |
| 46 | 05/05/2025 | 04:32:12 | -73.52, -77.85 | 122.66 | 05/05/2025 | 04:31:04 | -73.48, -80.27 | 122.54 | 76.35 | 68 |
Figure of NOAA-21 and METOP-B satellite orbits during SNOs since TLE Epoch: 4/22/2025
Download SNOs between NOAA-21 and METOP-B since TLE EPOCH: 04/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-B