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: 7/18/2025
| 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 | 07/20/2025 | 05:49:51 | -73.44, -97.11 | 126.88 | 07/20/2025 | 05:50:57 | -73.42, -94.15 | 127.09 | 93.85 | 66 |
| 2 | 07/20/2025 | 06:40:32 | 73.21, 70.73 | 52.86 | 07/20/2025 | 06:41:41 | 73.18, 72.66 | 52.71 | 62.07 | 69 |
| 3 | 07/20/2025 | 07:31:15 | -73.15,-121.83 | 127.20 | 07/20/2025 | 07:32:25 | -73.09,-120.21 | 127.37 | 52.66 | 70 |
| 4 | 07/20/2025 | 08:21:56 | 72.91, 46.00 | 52.54 | 07/20/2025 | 08:23:09 | 72.86, 46.62 | 52.44 | 21.09 | 73 |
| 5 | 07/20/2025 | 09:12:39 | -72.85,-146.56 | 127.52 | 07/20/2025 | 09:13:52 | -72.82,-146.13 | 127.59 | 14.66 | 73 |
| 6 | 07/20/2025 | 10:03:22 | 72.71, 21.04 | 52.34 | 07/20/2025 | 10:04:33 | 72.73, 21.02 | 52.34 | 2.68 | 71 |
| 7 | 07/20/2025 | 10:54:06 | -72.70,-171.63 | 127.67 | 07/20/2025 | 10:55:16 | -72.70,-171.72 | 127.69 | 3.22 | 70 |
| 8 | 07/20/2025 | 11:44:52 | 72.71, -4.34 | 52.35 | 07/20/2025 | 11:45:55 | 72.71, -4.36 | 52.34 | 0.76 | 63 |
| 9 | 07/20/2025 | 12:35:35 | -72.71, 162.99 | 127.65 | 07/20/2025 | 12:36:36 | -72.73, 162.99 | 127.65 | 1.95 | 61 |
| 10 | 07/20/2025 | 13:26:21 | 72.72, -29.72 | 52.37 | 07/20/2025 | 13:27:16 | 72.69, -29.75 | 52.33 | 3.37 | 55 |
| 11 | 07/20/2025 | 14:17:05 | -72.71, 137.60 | 127.63 | 07/20/2025 | 14:17:58 | -72.70, 137.61 | 127.65 | 0.98 | 53 |
| 12 | 07/20/2025 | 15:07:51 | 72.72, -55.11 | 52.39 | 07/20/2025 | 15:08:37 | 72.72, -55.03 | 52.37 | 2.69 | 46 |
| 13 | 07/20/2025 | 15:58:34 | -72.67, 112.33 | 127.67 | 07/20/2025 | 15:59:20 | -72.68, 112.22 | 127.66 | 3.77 | 46 |
| 14 | 07/20/2025 | 16:49:20 | 72.68, -80.39 | 52.35 | 07/20/2025 | 16:49:59 | 72.69, -80.41 | 52.36 | 2.32 | 39 |
| 15 | 07/20/2025 | 17:40:04 | -72.67, 86.94 | 127.65 | 07/20/2025 | 17:40:42 | -72.66, 86.84 | 127.66 | 3.59 | 38 |
| 16 | 07/20/2025 | 18:30:50 | 72.68,-105.77 | 52.37 | 07/20/2025 | 18:31:21 | 72.67,-105.80 | 52.36 | 1.28 | 31 |
| 17 | 07/20/2025 | 19:21:34 | -72.67, 61.56 | 127.63 | 07/20/2025 | 19:22:03 | -72.69, 61.56 | 127.63 | 1.59 | 29 |
| 18 | 07/20/2025 | 20:12:20 | 72.68,-131.15 | 52.39 | 07/20/2025 | 20:12:42 | 72.70,-131.08 | 52.40 | 3.06 | 22 |
| 19 | 07/20/2025 | 21:03:04 | -72.68, 36.18 | 127.62 | 07/20/2025 | 21:03:25 | -72.67, 36.17 | 127.63 | 1.31 | 21 |
| 20 | 07/20/2025 | 21:53:50 | 72.69,-156.53 | 52.41 | 07/20/2025 | 21:54:04 | 72.68,-156.46 | 52.39 | 2.56 | 14 |
| 21 | 07/20/2025 | 22:44:34 | -72.68, 10.79 | 127.60 | 07/20/2025 | 22:44:46 | -72.69, 10.89 | 127.59 | 3.57 | 12 |
| 22 | 07/20/2025 | 23:35:19 | 72.64, 178.19 | 52.37 | 07/20/2025 | 23:35:26 | 72.66, 178.15 | 52.38 | 2.03 | 7 |
| 23 | 07/21/2025 | 00:26:04 | -72.69, -14.59 | 127.58 | 07/21/2025 | 00:26:08 | -72.67, -14.49 | 127.60 | 3.53 | 4 |
| 24 | 07/21/2025 | 01:16:49 | 72.65, 152.80 | 52.39 | 07/21/2025 | 01:16:48 | 72.63, 152.77 | 52.38 | 1.82 | 1 |
| 25 | 07/21/2025 | 02:07:33 | -72.64, -39.87 | 127.62 | 07/21/2025 | 02:07:30 | -72.65, -39.88 | 127.60 | 1.28 | 3 |
| 26 | 07/21/2025 | 02:58:19 | 72.65, 127.42 | 52.41 | 07/21/2025 | 02:58:09 | 72.66, 127.48 | 52.42 | 2.55 | 10 |
| 27 | 07/21/2025 | 03:49:03 | -72.64, -65.25 | 127.60 | 07/21/2025 | 03:48:52 | -72.63, -65.26 | 127.61 | 1.71 | 11 |
| 28 | 07/21/2025 | 04:39:49 | 72.65, 102.04 | 52.42 | 07/21/2025 | 04:39:31 | 72.64, 102.10 | 52.41 | 2.58 | 18 |
| 29 | 07/21/2025 | 05:30:33 | -72.65, -90.63 | 127.58 | 07/21/2025 | 05:30:13 | -72.66, -90.54 | 127.57 | 3.19 | 20 |
| 30 | 07/21/2025 | 06:21:18 | 72.61, 76.76 | 52.39 | 07/21/2025 | 06:20:53 | 72.62, 76.71 | 52.41 | 1.86 | 25 |
| 31 | 07/21/2025 | 07:12:03 | -72.65,-116.02 | 127.56 | 07/21/2025 | 07:11:35 | -72.63,-115.93 | 127.58 | 3.47 | 28 |
| 32 | 07/21/2025 | 08:02:48 | 72.61, 51.37 | 52.40 | 07/21/2025 | 08:02:15 | 72.60, 51.33 | 52.40 | 2.37 | 33 |
| 33 | 07/21/2025 | 08:53:32 | -72.60,-141.30 | 127.60 | 07/21/2025 | 08:52:57 | -72.61,-141.31 | 127.58 | 1.04 | 35 |
| 34 | 07/21/2025 | 09:44:18 | 72.62, 25.99 | 52.42 | 07/21/2025 | 09:43:36 | 72.62, 26.05 | 52.44 | 2.06 | 42 |
| 35 | 07/21/2025 | 10:35:02 | -72.61,-166.68 | 127.58 | 07/21/2025 | 10:34:19 | -72.59,-166.70 | 127.59 | 2.13 | 43 |
| 36 | 07/21/2025 | 11:25:48 | 72.62, 0.61 | 52.44 | 07/21/2025 | 11:24:58 | 72.60, 0.66 | 52.43 | 2.73 | 50 |
| 37 | 07/21/2025 | 12:16:32 | -72.61, 167.94 | 127.56 | 07/21/2025 | 12:15:40 | -72.62, 168.02 | 127.55 | 2.83 | 52 |
| 38 | 07/21/2025 | 13:07:17 | 72.57, -24.67 | 52.40 | 07/21/2025 | 13:06:20 | 72.58, -24.72 | 52.43 | 1.83 | 57 |
| 39 | 07/21/2025 | 13:58:02 | -72.62, 142.56 | 127.55 | 07/21/2025 | 13:57:02 | -72.60, 142.64 | 127.55 | 3.48 | 60 |
| 40 | 07/21/2025 | 14:48:47 | 72.58, -50.05 | 52.42 | 07/21/2025 | 14:47:42 | 72.56, -50.11 | 52.42 | 2.92 | 65 |
| 41 | 07/21/2025 | 15:39:31 | -72.57, 117.28 | 127.58 | 07/21/2025 | 15:38:24 | -72.57, 117.25 | 127.56 | 0.95 | 67 |
| 42 | 07/21/2025 | 16:30:17 | 72.58, -75.44 | 52.44 | 07/21/2025 | 16:29:03 | 72.59, -75.39 | 52.46 | 1.66 | 74 |
| 43 | 07/21/2025 | 17:21:01 | -72.57, 91.89 | 127.56 | 07/21/2025 | 17:19:46 | -72.55, 91.87 | 127.57 | 2.56 | 75 |
| 44 | 07/21/2025 | 18:11:42 | 72.33,-100.31 | 52.18 | 07/21/2025 | 18:10:30 | 72.31,-101.28 | 52.23 | 32.99 | 72 |
| 45 | 07/21/2025 | 19:02:25 | -72.27, 67.12 | 127.88 | 07/21/2025 | 19:01:13 | -72.28, 65.98 | 127.79 | 38.62 | 72 |
| 46 | 07/21/2025 | 19:53:06 | 72.03,-125.10 | 51.86 | 07/21/2025 | 19:51:57 | 72.03,-127.16 | 52.01 | 70.83 | 69 |
| 47 | 07/21/2025 | 20:43:49 | -71.97, 42.33 | 128.20 | 07/21/2025 | 20:42:41 | -71.95, 40.01 | 128.06 | 79.88 | 68 |
Figure of NOAA-21 and METOP-C satellite orbits during SNOs since TLE Epoch: 7/18/2025
Download SNOs between NOAA-21 and METOP-C since TLE EPOCH: 07/18/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-C