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: 7/16/2025
| 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 | -73.45, -97.12 | 126.88 | 07/20/2025 | 05:50:57 | -73.41, -94.17 | 127.10 | 93.89 | 66 |
| 2 | 07/20/2025 | 06:40:32 | 73.21, 70.71 | 52.87 | 07/20/2025 | 06:41:41 | 73.17, 72.64 | 52.70 | 62.17 | 69 |
| 3 | 07/20/2025 | 07:31:15 | -73.15,-121.84 | 127.20 | 07/20/2025 | 07:32:25 | -73.09,-120.22 | 127.37 | 52.81 | 70 |
| 4 | 07/20/2025 | 08:21:56 | 72.92, 45.99 | 52.55 | 07/20/2025 | 08:23:08 | 72.90, 46.71 | 52.47 | 23.84 | 72 |
| 5 | 07/20/2025 | 09:12:39 | -72.86,-146.57 | 127.51 | 07/20/2025 | 09:13:52 | -72.81,-146.14 | 127.60 | 14.99 | 73 |
| 6 | 07/20/2025 | 10:03:22 | 72.72, 21.03 | 52.34 | 07/20/2025 | 10:04:33 | 72.72, 21.01 | 52.34 | 1.05 | 71 |
| 7 | 07/20/2025 | 10:54:06 | -72.71,-171.64 | 127.66 | 07/20/2025 | 10:55:15 | -72.74,-171.63 | 127.65 | 3.61 | 69 |
| 8 | 07/20/2025 | 11:44:52 | 72.72, -4.36 | 52.36 | 07/20/2025 | 11:45:55 | 72.70, -4.38 | 52.33 | 2.19 | 63 |
| 9 | 07/20/2025 | 12:35:36 | -72.71, 162.98 | 127.64 | 07/20/2025 | 12:36:37 | -72.72, 162.98 | 127.65 | 0.74 | 61 |
| 10 | 07/20/2025 | 13:26:22 | 72.73, -29.74 | 52.38 | 07/20/2025 | 13:27:16 | 72.73, -29.66 | 52.37 | 2.78 | 54 |
| 11 | 07/20/2025 | 14:17:06 | -72.72, 137.59 | 127.63 | 07/20/2025 | 14:17:59 | -72.70, 137.60 | 127.66 | 2.20 | 53 |
| 12 | 07/20/2025 | 15:07:51 | 72.68, -55.02 | 52.34 | 07/20/2025 | 15:08:38 | 72.71, -55.04 | 52.36 | 3.45 | 47 |
| 13 | 07/20/2025 | 15:58:35 | -72.67, 112.31 | 127.66 | 07/20/2025 | 15:59:21 | -72.68, 112.21 | 127.66 | 3.40 | 46 |
| 14 | 07/20/2025 | 16:49:21 | 72.68, -80.40 | 52.36 | 07/20/2025 | 16:50:00 | 72.69, -80.43 | 52.36 | 1.00 | 39 |
| 15 | 07/20/2025 | 17:40:05 | -72.67, 86.93 | 127.65 | 07/20/2025 | 17:40:42 | -72.70, 86.93 | 127.63 | 3.27 | 37 |
| 16 | 07/20/2025 | 18:30:51 | 72.69,-105.78 | 52.38 | 07/20/2025 | 18:31:22 | 72.66,-105.81 | 52.35 | 2.73 | 31 |
| 17 | 07/20/2025 | 19:21:35 | -72.68, 61.55 | 127.63 | 07/20/2025 | 19:22:04 | -72.68, 61.55 | 127.63 | 0.38 | 29 |
| 18 | 07/20/2025 | 20:12:21 | 72.69,-131.17 | 52.40 | 07/20/2025 | 20:12:43 | 72.69,-131.10 | 52.39 | 2.40 | 22 |
| 19 | 07/20/2025 | 21:03:04 | -72.68, 36.17 | 127.61 | 07/20/2025 | 21:03:25 | -72.66, 36.16 | 127.64 | 2.52 | 21 |
| 20 | 07/20/2025 | 21:53:49 | 72.64,-156.45 | 52.36 | 07/20/2025 | 21:54:04 | 72.67,-156.48 | 52.38 | 3.10 | 15 |
| 21 | 07/20/2025 | 22:44:34 | -72.69, 10.78 | 127.59 | 07/20/2025 | 22:44:46 | -72.69, 10.88 | 127.60 | 3.25 | 12 |
| 22 | 07/20/2025 | 23:35:19 | 72.65, 178.17 | 52.38 | 07/20/2025 | 23:35:26 | 72.65, 178.13 | 52.38 | 1.21 | 7 |
| 23 | 07/21/2025 | 00:26:03 | -72.64, -14.50 | 127.63 | 07/21/2025 | 00:26:08 | -72.67, -14.50 | 127.60 | 2.96 | 5 |
| 24 | 07/21/2025 | 01:16:49 | 72.65, 152.79 | 52.40 | 07/21/2025 | 01:16:48 | 72.63, 152.75 | 52.37 | 3.28 | 1 |
| 25 | 07/21/2025 | 02:07:33 | -72.64, -39.88 | 127.61 | 07/21/2025 | 02:07:30 | -72.64, -39.89 | 127.61 | 0.34 | 3 |
| 26 | 07/21/2025 | 02:58:19 | 72.66, 127.40 | 52.41 | 07/21/2025 | 02:58:09 | 72.65, 127.47 | 52.41 | 2.13 | 10 |
| 27 | 07/21/2025 | 03:49:03 | -72.65, -65.26 | 127.59 | 07/21/2025 | 03:48:52 | -72.62, -65.27 | 127.62 | 2.88 | 11 |
| 28 | 07/21/2025 | 04:39:48 | 72.61, 102.13 | 52.38 | 07/21/2025 | 04:39:31 | 72.63, 102.08 | 52.40 | 2.79 | 17 |
| 29 | 07/21/2025 | 05:30:33 | -72.65, -90.64 | 127.58 | 07/21/2025 | 05:30:13 | -72.65, -90.55 | 127.58 | 2.97 | 20 |
| 30 | 07/21/2025 | 06:21:18 | 72.61, 76.74 | 52.39 | 07/21/2025 | 06:20:53 | 72.61, 76.70 | 52.40 | 1.58 | 25 |
| 31 | 07/21/2025 | 07:12:02 | -72.61,-115.92 | 127.61 | 07/21/2025 | 07:11:35 | -72.63,-115.94 | 127.58 | 2.66 | 27 |
| 32 | 07/21/2025 | 08:02:48 | 72.62, 51.36 | 52.41 | 07/21/2025 | 08:02:14 | 72.64, 51.42 | 52.44 | 2.88 | 34 |
| 33 | 07/21/2025 | 08:53:32 | -72.61,-141.31 | 127.59 | 07/21/2025 | 08:52:57 | -72.61,-141.32 | 127.59 | 0.67 | 35 |
| 34 | 07/21/2025 | 09:44:18 | 72.62, 25.98 | 52.43 | 07/21/2025 | 09:43:36 | 72.62, 26.03 | 52.43 | 1.99 | 42 |
| 35 | 07/21/2025 | 10:35:02 | -72.61,-166.69 | 127.58 | 07/21/2025 | 10:34:19 | -72.58,-166.71 | 127.59 | 3.27 | 43 |
| 36 | 07/21/2025 | 11:25:47 | 72.58, 0.70 | 52.39 | 07/21/2025 | 11:24:58 | 72.59, 0.65 | 52.43 | 2.56 | 49 |
| 37 | 07/21/2025 | 12:16:32 | -72.62, 167.93 | 127.56 | 07/21/2025 | 12:15:40 | -72.61, 168.01 | 127.55 | 2.74 | 52 |
| 38 | 07/21/2025 | 13:07:17 | 72.58, -24.69 | 52.41 | 07/21/2025 | 13:06:20 | 72.57, -24.74 | 52.42 | 2.03 | 57 |
| 39 | 07/21/2025 | 13:58:01 | -72.57, 142.65 | 127.60 | 07/21/2025 | 13:57:02 | -72.59, 142.63 | 127.56 | 2.39 | 59 |
| 40 | 07/21/2025 | 14:48:47 | 72.58, -50.07 | 52.43 | 07/21/2025 | 14:47:41 | 72.60, -50.02 | 52.46 | 2.35 | 66 |
| 41 | 07/21/2025 | 15:39:31 | -72.57, 117.27 | 127.58 | 07/21/2025 | 15:38:24 | -72.57, 117.24 | 127.56 | 1.07 | 67 |
| 42 | 07/21/2025 | 16:30:17 | 72.59, -75.45 | 52.45 | 07/21/2025 | 16:29:03 | 72.58, -75.41 | 52.45 | 2.02 | 74 |
| 43 | 07/21/2025 | 17:21:01 | -72.58, 91.88 | 127.56 | 07/21/2025 | 17:19:46 | -72.55, 91.86 | 127.57 | 3.68 | 75 |
| 44 | 07/21/2025 | 18:11:42 | 72.34,-100.32 | 52.19 | 07/21/2025 | 18:10:30 | 72.30,-101.30 | 52.23 | 33.20 | 72 |
| 45 | 07/21/2025 | 19:02:25 | -72.28, 67.11 | 127.87 | 07/21/2025 | 19:01:13 | -72.27, 65.97 | 127.80 | 38.69 | 72 |
| 46 | 07/21/2025 | 19:53:05 | 71.98,-125.01 | 51.81 | 07/21/2025 | 19:51:57 | 72.02,-127.18 | 52.00 | 74.43 | 68 |
| 47 | 07/21/2025 | 20:43:49 | -71.98, 42.32 | 128.19 | 07/21/2025 | 20:42:41 | -71.94, 40.00 | 128.06 | 79.98 | 68 |
Figure of NOAA-21 and METOP-C satellite orbits during SNOs since TLE Epoch: 7/16/2025
Download SNOs between NOAA-21 and METOP-C since TLE EPOCH: 07/16/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-C