Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and METOP-C Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/25/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (METOP-C) | Time (METOP-C) | Lat,Lon (METOP-C) | SZA (METOP-C ) | Distance(km) | Time Diff (sec) |
| 1 | 05/29/2025 | 21:28:13 | 73.31,-151.40 | 51.68 | 05/29/2025 | 21:29:21 | 73.28,-149.13 | 51.54 | 72.71 | 68 |
| 2 | 05/29/2025 | 22:18:55 | -73.23, 16.09 | 128.42 | 05/29/2025 | 22:20:04 | -73.21, 18.04 | 128.53 | 62.50 | 69 |
| 3 | 05/29/2025 | 23:09:37 | 73.01,-176.12 | 51.34 | 05/29/2025 | 23:10:49 | 72.96,-175.17 | 51.24 | 31.39 | 72 |
| 4 | 05/30/2025 | 00:00:19 | -72.93, -8.63 | 128.75 | 05/30/2025 | 00:01:32 | -72.89, -7.99 | 128.84 | 21.45 | 73 |
| 5 | 05/30/2025 | 00:51:02 | 72.75, 159.04 | 51.06 | 05/30/2025 | 00:52:15 | 72.74, 159.03 | 51.03 | 1.84 | 73 |
| 6 | 05/30/2025 | 01:41:45 | -72.73, -33.59 | 128.98 | 05/30/2025 | 01:42:57 | -72.72, -33.69 | 129.00 | 3.54 | 72 |
| 7 | 05/30/2025 | 02:32:32 | 72.76, 133.66 | 51.05 | 05/30/2025 | 02:33:36 | 72.77, 133.75 | 51.05 | 3.50 | 64 |
| 8 | 05/30/2025 | 03:23:15 | -72.73, -58.97 | 128.99 | 05/30/2025 | 03:24:18 | -72.75, -58.96 | 128.98 | 2.01 | 63 |
| 9 | 05/30/2025 | 04:14:02 | 72.76, 108.28 | 51.04 | 05/30/2025 | 04:14:58 | 72.75, 108.38 | 51.02 | 3.25 | 56 |
| 10 | 05/30/2025 | 05:04:45 | -72.73, -84.35 | 129.00 | 05/30/2025 | 05:05:40 | -72.73, -84.34 | 129.01 | 0.35 | 55 |
| 11 | 05/30/2025 | 05:55:31 | 72.71, 83.01 | 50.98 | 05/30/2025 | 05:56:20 | 72.73, 83.00 | 50.99 | 2.52 | 49 |
| 12 | 05/30/2025 | 06:46:15 | -72.73,-109.73 | 129.00 | 05/30/2025 | 06:47:02 | -72.71,-109.72 | 129.04 | 2.62 | 47 |
| 13 | 05/30/2025 | 07:37:01 | 72.71, 57.63 | 50.97 | 05/30/2025 | 07:37:42 | 72.71, 57.62 | 50.96 | 0.39 | 41 |
| 14 | 05/30/2025 | 08:27:44 | -72.69,-135.00 | 129.07 | 05/30/2025 | 08:28:24 | -72.69,-135.10 | 129.06 | 3.37 | 40 |
| 15 | 05/30/2025 | 09:18:31 | 72.71, 32.25 | 50.96 | 05/30/2025 | 09:19:04 | 72.69, 32.24 | 50.94 | 2.19 | 33 |
| 16 | 05/30/2025 | 10:09:14 | -72.69,-160.38 | 129.08 | 05/30/2025 | 10:09:46 | -72.67,-160.48 | 129.09 | 3.67 | 32 |
| 17 | 05/30/2025 | 11:00:01 | 72.72, 6.87 | 50.95 | 05/30/2025 | 11:00:25 | 72.73, 6.96 | 50.95 | 3.30 | 24 |
| 18 | 05/30/2025 | 11:50:44 | -72.69, 174.24 | 129.08 | 05/30/2025 | 11:51:07 | -72.70, 174.25 | 129.07 | 1.71 | 23 |
| 19 | 05/30/2025 | 12:41:31 | 72.72, -18.51 | 50.95 | 05/30/2025 | 12:41:47 | 72.71, -18.42 | 50.93 | 3.29 | 16 |
| 20 | 05/30/2025 | 13:32:14 | -72.69, 148.86 | 129.09 | 05/30/2025 | 13:32:29 | -72.69, 148.87 | 129.10 | 0.63 | 15 |
| 21 | 05/30/2025 | 14:23:00 | 72.67, -43.78 | 50.88 | 05/30/2025 | 14:23:09 | 72.69, -43.79 | 50.90 | 2.18 | 9 |
| 22 | 05/30/2025 | 15:13:44 | -72.69, 123.49 | 129.10 | 05/30/2025 | 15:13:51 | -72.67, 123.49 | 129.13 | 2.93 | 7 |
| 23 | 05/30/2025 | 16:04:30 | 72.67, -69.16 | 50.87 | 05/30/2025 | 16:04:31 | 72.67, -69.17 | 50.87 | 0.45 | 1 |
| 24 | 05/30/2025 | 16:55:13 | -72.64, 98.21 | 129.16 | 05/30/2025 | 16:55:13 | -72.65, 98.11 | 129.15 | 3.32 | 0 |
| 25 | 05/30/2025 | 17:46:00 | 72.67, -94.54 | 50.87 | 05/30/2025 | 17:45:53 | 72.65, -94.55 | 50.85 | 2.56 | 7 |
| 26 | 05/30/2025 | 18:36:43 | -72.65, 72.83 | 129.17 | 05/30/2025 | 18:36:34 | -72.68, 72.84 | 129.14 | 3.70 | 9 |
| 27 | 05/30/2025 | 19:27:30 | 72.67,-119.92 | 50.86 | 05/30/2025 | 19:27:14 | 72.68,-119.83 | 50.86 | 3.14 | 16 |
| 28 | 05/30/2025 | 20:18:13 | -72.65, 47.45 | 129.18 | 05/30/2025 | 20:17:56 | -72.66, 47.46 | 129.16 | 1.39 | 17 |
| 29 | 05/30/2025 | 21:09:00 | 72.68,-145.30 | 50.85 | 05/30/2025 | 21:08:36 | 72.66,-145.21 | 50.84 | 3.40 | 24 |
| 30 | 05/30/2025 | 21:59:43 | -72.65, 22.07 | 129.19 | 05/30/2025 | 21:59:18 | -72.64, 22.08 | 129.19 | 0.95 | 25 |
| 31 | 05/30/2025 | 22:50:29 | 72.63,-170.57 | 50.79 | 05/30/2025 | 22:49:58 | 72.64,-170.58 | 50.81 | 1.82 | 31 |
| 32 | 05/30/2025 | 23:41:13 | -72.65, -3.30 | 129.19 | 05/30/2025 | 23:40:40 | -72.62, -3.30 | 129.22 | 3.27 | 33 |
| 33 | 05/31/2025 | 00:31:59 | 72.63, 164.05 | 50.78 | 05/31/2025 | 00:31:20 | 72.62, 164.04 | 50.78 | 0.72 | 39 |
| 34 | 05/31/2025 | 01:22:42 | -72.60, -28.58 | 129.26 | 05/31/2025 | 01:22:02 | -72.60, -28.68 | 129.24 | 3.27 | 40 |
| 35 | 05/31/2025 | 02:13:29 | 72.63, 138.67 | 50.77 | 05/31/2025 | 02:12:42 | 72.61, 138.66 | 50.76 | 2.95 | 47 |
| 36 | 05/31/2025 | 03:04:12 | -72.61, -53.96 | 129.26 | 05/31/2025 | 03:03:23 | -72.64, -53.95 | 129.23 | 3.37 | 49 |
| 37 | 05/31/2025 | 03:54:59 | 72.63, 113.29 | 50.76 | 05/31/2025 | 03:54:03 | 72.64, 113.38 | 50.78 | 3.04 | 56 |
| 38 | 05/31/2025 | 04:45:42 | -72.61, -79.34 | 129.27 | 05/31/2025 | 04:44:45 | -72.62, -79.33 | 129.25 | 1.06 | 57 |
| 39 | 05/31/2025 | 05:36:29 | 72.64, 87.91 | 50.76 | 05/31/2025 | 05:35:25 | 72.62, 88.00 | 50.75 | 3.59 | 64 |
| 40 | 05/31/2025 | 06:27:12 | -72.61,-104.72 | 129.28 | 05/31/2025 | 06:26:07 | -72.60,-104.71 | 129.28 | 1.30 | 65 |
| 41 | 05/31/2025 | 07:17:58 | 72.59, 62.64 | 50.69 | 05/31/2025 | 07:16:47 | 72.60, 62.63 | 50.72 | 1.44 | 71 |
| 42 | 05/31/2025 | 08:08:42 | -72.61,-130.09 | 129.29 | 05/31/2025 | 08:07:29 | -72.58,-130.09 | 129.31 | 3.62 | 73 |
| 43 | 05/31/2025 | 08:59:25 | 72.44, 37.57 | 50.52 | 05/31/2025 | 08:58:12 | 72.43, 36.94 | 50.56 | 21.13 | 73 |
| 44 | 05/31/2025 | 09:50:07 | -72.36,-154.96 | 129.57 | 05/31/2025 | 09:48:55 | -72.36,-155.87 | 129.51 | 30.68 | 72 |
| 45 | 05/31/2025 | 10:40:49 | 72.13, 12.79 | 50.18 | 05/31/2025 | 10:39:39 | 72.15, 11.06 | 50.30 | 59.07 | 70 |
| 46 | 05/31/2025 | 11:31:31 | -72.06,-179.75 | 129.91 | 05/31/2025 | 11:30:22 | -72.08, 178.25 | 129.77 | 68.51 | 69 |
Figure of NOAA-21 and METOP-C satellite orbits during SNOs since TLE Epoch: 5/25/2025
Download SNOs between NOAA-21 and METOP-C since TLE EPOCH: 05/25/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-C