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: 7/19/2025
| 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, -97.10 | 126.89 | 07/20/2025 | 05:50:57 | -73.42, -94.14 | 127.09 | 93.80 | 66 |
| 2 | 07/20/2025 | 06:40:33 | 73.25, 70.63 | 52.91 | 07/20/2025 | 06:41:41 | 73.19, 72.67 | 52.71 | 65.84 | 68 |
| 3 | 07/20/2025 | 07:31:14 | -73.14,-121.82 | 127.21 | 07/20/2025 | 07:32:24 | -73.10,-120.20 | 127.36 | 52.53 | 70 |
| 4 | 07/20/2025 | 08:21:56 | 72.95, 45.91 | 52.59 | 07/20/2025 | 08:23:08 | 72.86, 46.63 | 52.44 | 25.83 | 72 |
| 5 | 07/20/2025 | 09:12:38 | -72.85,-146.55 | 127.52 | 07/20/2025 | 09:13:51 | -72.82,-146.12 | 127.59 | 14.44 | 73 |
| 6 | 07/20/2025 | 10:03:22 | 72.75, 20.95 | 52.39 | 07/20/2025 | 10:04:32 | 72.74, 21.04 | 52.35 | 3.39 | 70 |
| 7 | 07/20/2025 | 10:54:05 | -72.70,-171.62 | 127.67 | 07/20/2025 | 10:55:15 | -72.70,-171.72 | 127.68 | 3.15 | 70 |
| 8 | 07/20/2025 | 11:44:51 | 72.71, -4.33 | 52.35 | 07/20/2025 | 11:45:54 | 72.72, -4.35 | 52.34 | 1.10 | 63 |
| 9 | 07/20/2025 | 12:35:35 | -72.70, 163.00 | 127.65 | 07/20/2025 | 12:36:36 | -72.73, 163.00 | 127.64 | 2.87 | 61 |
| 10 | 07/20/2025 | 13:26:21 | 72.71, -29.71 | 52.37 | 07/20/2025 | 13:27:16 | 72.69, -29.74 | 52.34 | 2.25 | 55 |
| 11 | 07/20/2025 | 14:17:05 | -72.71, 137.61 | 127.64 | 07/20/2025 | 14:17:58 | -72.71, 137.62 | 127.65 | 0.16 | 53 |
| 12 | 07/20/2025 | 15:07:51 | 72.72, -55.10 | 52.38 | 07/20/2025 | 15:08:37 | 72.72, -55.02 | 52.37 | 2.67 | 46 |
| 13 | 07/20/2025 | 15:58:35 | -72.71, 112.23 | 127.62 | 07/20/2025 | 15:59:20 | -72.69, 112.23 | 127.66 | 2.95 | 45 |
| 14 | 07/20/2025 | 16:49:20 | 72.67, -80.37 | 52.35 | 07/20/2025 | 16:49:59 | 72.70, -80.40 | 52.37 | 3.43 | 39 |
| 15 | 07/20/2025 | 17:40:04 | -72.67, 86.95 | 127.66 | 07/20/2025 | 17:40:42 | -72.66, 86.85 | 127.66 | 3.44 | 38 |
| 16 | 07/20/2025 | 18:30:50 | 72.67,-105.76 | 52.36 | 07/20/2025 | 18:31:21 | 72.68,-105.79 | 52.36 | 1.07 | 31 |
| 17 | 07/20/2025 | 19:21:34 | -72.67, 61.57 | 127.64 | 07/20/2025 | 19:22:03 | -72.69, 61.57 | 127.62 | 2.51 | 29 |
| 18 | 07/20/2025 | 20:12:20 | 72.68,-131.14 | 52.38 | 07/20/2025 | 20:12:43 | 72.66,-131.17 | 52.36 | 2.82 | 23 |
| 19 | 07/20/2025 | 21:03:04 | -72.67, 36.19 | 127.62 | 07/20/2025 | 21:03:25 | -72.67, 36.18 | 127.63 | 0.42 | 21 |
| 20 | 07/20/2025 | 21:53:50 | 72.68,-156.52 | 52.40 | 07/20/2025 | 21:54:04 | 72.68,-156.45 | 52.39 | 2.31 | 14 |
| 21 | 07/20/2025 | 22:44:34 | -72.68, 10.80 | 127.60 | 07/20/2025 | 22:44:47 | -72.65, 10.80 | 127.63 | 3.31 | 13 |
| 22 | 07/20/2025 | 23:35:19 | 72.64, 178.20 | 52.36 | 07/20/2025 | 23:35:26 | 72.66, 178.16 | 52.39 | 3.06 | 7 |
| 23 | 07/21/2025 | 00:26:04 | -72.68, -14.58 | 127.58 | 07/21/2025 | 00:26:08 | -72.68, -14.48 | 127.60 | 3.22 | 4 |
| 24 | 07/21/2025 | 01:16:49 | 72.64, 152.81 | 52.38 | 07/21/2025 | 01:16:48 | 72.64, 152.78 | 52.38 | 1.31 | 1 |
| 25 | 07/21/2025 | 02:07:33 | -72.63, -39.86 | 127.62 | 07/21/2025 | 02:07:30 | -72.65, -39.87 | 127.60 | 2.17 | 3 |
| 26 | 07/21/2025 | 02:58:19 | 72.64, 127.43 | 52.40 | 07/21/2025 | 02:58:09 | 72.67, 127.49 | 52.42 | 3.30 | 10 |
| 27 | 07/21/2025 | 03:49:03 | -72.64, -65.24 | 127.60 | 07/21/2025 | 03:48:52 | -72.63, -65.25 | 127.61 | 0.86 | 11 |
| 28 | 07/21/2025 | 04:39:49 | 72.65, 102.05 | 52.42 | 07/21/2025 | 04:39:31 | 72.65, 102.11 | 52.42 | 2.06 | 18 |
| 29 | 07/21/2025 | 05:30:33 | -72.64, -90.62 | 127.59 | 07/21/2025 | 05:30:13 | -72.66, -90.53 | 127.57 | 3.56 | 20 |
| 30 | 07/21/2025 | 06:21:18 | 72.60, 76.77 | 52.38 | 07/21/2025 | 06:20:53 | 72.62, 76.72 | 52.41 | 2.74 | 25 |
| 31 | 07/21/2025 | 07:12:03 | -72.65,-116.01 | 127.57 | 07/21/2025 | 07:11:35 | -72.64,-115.92 | 127.57 | 3.05 | 28 |
| 32 | 07/21/2025 | 08:02:48 | 72.61, 51.39 | 52.40 | 07/21/2025 | 08:02:15 | 72.60, 51.34 | 52.40 | 1.70 | 33 |
| 33 | 07/21/2025 | 08:53:32 | -72.60,-141.29 | 127.60 | 07/21/2025 | 08:52:57 | -72.62,-141.30 | 127.58 | 1.87 | 35 |
| 34 | 07/21/2025 | 09:44:18 | 72.61, 26.00 | 52.42 | 07/21/2025 | 09:43:36 | 72.63, 26.06 | 52.44 | 2.74 | 42 |
| 35 | 07/21/2025 | 10:35:02 | -72.60,-166.67 | 127.59 | 07/21/2025 | 10:34:19 | -72.59,-166.69 | 127.58 | 1.32 | 43 |
| 36 | 07/21/2025 | 11:25:48 | 72.61, 0.62 | 52.44 | 07/21/2025 | 11:24:58 | 72.61, 0.67 | 52.44 | 1.98 | 50 |
| 37 | 07/21/2025 | 12:16:32 | -72.61, 167.95 | 127.57 | 07/21/2025 | 12:15:40 | -72.62, 168.03 | 127.55 | 3.14 | 52 |
| 38 | 07/21/2025 | 13:07:17 | 72.57, -24.66 | 52.40 | 07/21/2025 | 13:06:20 | 72.58, -24.71 | 52.43 | 2.50 | 57 |
| 39 | 07/21/2025 | 13:58:02 | -72.61, 142.57 | 127.55 | 07/21/2025 | 13:57:02 | -72.60, 142.64 | 127.55 | 2.96 | 60 |
| 40 | 07/21/2025 | 14:48:47 | 72.57, -50.04 | 52.42 | 07/21/2025 | 14:47:42 | 72.56, -50.10 | 52.43 | 2.17 | 65 |
| 41 | 07/21/2025 | 15:39:31 | -72.57, 117.29 | 127.59 | 07/21/2025 | 15:38:24 | -72.58, 117.26 | 127.56 | 1.62 | 67 |
| 42 | 07/21/2025 | 16:30:17 | 72.58, -75.43 | 52.44 | 07/21/2025 | 16:29:03 | 72.59, -75.38 | 52.46 | 2.18 | 74 |
| 43 | 07/21/2025 | 17:21:01 | -72.57, 91.90 | 127.57 | 07/21/2025 | 17:19:46 | -72.56, 91.88 | 127.56 | 1.78 | 75 |
| 44 | 07/21/2025 | 18:11:42 | 72.33,-100.30 | 52.17 | 07/21/2025 | 18:10:30 | 72.31,-101.27 | 52.24 | 32.96 | 72 |
| 45 | 07/21/2025 | 19:02:25 | -72.27, 67.13 | 127.88 | 07/21/2025 | 19:01:13 | -72.28, 65.99 | 127.79 | 38.68 | 72 |
| 46 | 07/21/2025 | 19:53:06 | 72.02,-125.09 | 51.86 | 07/21/2025 | 19:51:57 | 72.03,-127.15 | 52.01 | 70.88 | 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 | 79.89 | 68 |
Figure of NOAA-21 and METOP-C satellite orbits during SNOs since TLE Epoch: 7/19/2025
Download SNOs between NOAA-21 and METOP-C since TLE EPOCH: 07/19/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-C