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: 7/7/2025
| 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 | -73.43, -97.09 | 126.90 | 07/20/2025 | 05:50:58 | -73.37, -94.26 | 127.13 | 90.21 | 67 |
| 2 | 07/20/2025 | 06:40:32 | 73.21, 70.73 | 52.86 | 07/20/2025 | 06:41:41 | 73.18, 72.65 | 52.70 | 61.74 | 69 |
| 3 | 07/20/2025 | 07:31:15 | -73.14,-121.80 | 127.21 | 07/20/2025 | 07:32:25 | -73.10,-120.20 | 127.36 | 52.06 | 70 |
| 4 | 07/20/2025 | 08:21:56 | 72.91, 46.00 | 52.54 | 07/20/2025 | 08:23:09 | 72.85, 46.61 | 52.43 | 20.95 | 73 |
| 5 | 07/20/2025 | 09:12:39 | -72.84,-146.54 | 127.53 | 07/20/2025 | 09:13:53 | -72.77,-146.23 | 127.63 | 12.65 | 74 |
| 6 | 07/20/2025 | 10:03:22 | 72.71, 21.04 | 52.34 | 07/20/2025 | 10:04:33 | 72.73, 21.01 | 52.34 | 2.11 | 71 |
| 7 | 07/20/2025 | 10:54:07 | -72.74,-171.71 | 127.63 | 07/20/2025 | 10:55:15 | -72.75,-171.61 | 127.64 | 3.53 | 68 |
| 8 | 07/20/2025 | 11:44:52 | 72.71, -4.34 | 52.35 | 07/20/2025 | 11:45:55 | 72.70, -4.37 | 52.33 | 1.51 | 63 |
| 9 | 07/20/2025 | 12:35:36 | -72.75, 162.90 | 127.61 | 07/20/2025 | 12:36:36 | -72.73, 163.00 | 127.64 | 3.75 | 60 |
| 10 | 07/20/2025 | 13:26:21 | 72.72, -29.73 | 52.37 | 07/20/2025 | 13:27:15 | 72.73, -29.65 | 52.37 | 2.84 | 54 |
| 11 | 07/20/2025 | 14:17:05 | -72.70, 137.63 | 127.65 | 07/20/2025 | 14:17:58 | -72.71, 137.62 | 127.65 | 0.93 | 53 |
| 12 | 07/20/2025 | 15:07:51 | 72.72, -55.11 | 52.39 | 07/20/2025 | 15:08:37 | 72.71, -55.04 | 52.36 | 2.59 | 46 |
| 13 | 07/20/2025 | 15:58:35 | -72.70, 112.24 | 127.63 | 07/20/2025 | 15:59:20 | -72.69, 112.23 | 127.66 | 2.03 | 45 |
| 14 | 07/20/2025 | 16:49:20 | 72.67, -80.39 | 52.35 | 07/20/2025 | 16:49:59 | 72.69, -80.43 | 52.36 | 1.92 | 39 |
| 15 | 07/20/2025 | 17:40:05 | -72.71, 86.86 | 127.61 | 07/20/2025 | 17:40:41 | -72.71, 86.95 | 127.62 | 3.12 | 36 |
| 16 | 07/20/2025 | 18:30:50 | 72.68,-105.77 | 52.37 | 07/20/2025 | 18:31:21 | 72.66,-105.81 | 52.35 | 2.08 | 31 |
| 17 | 07/20/2025 | 19:21:34 | -72.66, 61.58 | 127.65 | 07/20/2025 | 19:22:03 | -72.69, 61.57 | 127.62 | 3.48 | 29 |
| 18 | 07/20/2025 | 20:12:20 | 72.68,-131.15 | 52.39 | 07/20/2025 | 20:12:42 | 72.69,-131.09 | 52.39 | 2.31 | 22 |
| 19 | 07/20/2025 | 21:03:04 | -72.66, 36.20 | 127.63 | 07/20/2025 | 21:03:25 | -72.67, 36.18 | 127.63 | 0.79 | 21 |
| 20 | 07/20/2025 | 21:53:50 | 72.69,-156.54 | 52.41 | 07/20/2025 | 21:54:04 | 72.67,-156.48 | 52.38 | 2.62 | 14 |
| 21 | 07/20/2025 | 22:44:34 | -72.67, 10.82 | 127.61 | 07/20/2025 | 22:44:47 | -72.65, 10.80 | 127.63 | 2.45 | 13 |
| 22 | 07/20/2025 | 23:35:19 | 72.64, 178.19 | 52.37 | 07/20/2025 | 23:35:26 | 72.65, 178.14 | 52.38 | 1.86 | 7 |
| 23 | 07/21/2025 | 00:26:04 | -72.67, -14.57 | 127.59 | 07/21/2025 | 00:26:08 | -72.68, -14.48 | 127.60 | 2.74 | 4 |
| 24 | 07/21/2025 | 01:16:49 | 72.64, 152.80 | 52.39 | 07/21/2025 | 01:16:48 | 72.63, 152.75 | 52.37 | 2.65 | 1 |
| 25 | 07/21/2025 | 02:07:33 | -72.63, -39.85 | 127.63 | 07/21/2025 | 02:07:30 | -72.65, -39.87 | 127.60 | 3.19 | 3 |
| 26 | 07/21/2025 | 02:58:19 | 72.65, 127.42 | 52.40 | 07/21/2025 | 02:58:09 | 72.65, 127.47 | 52.41 | 1.81 | 10 |
Figure of NOAA-21 and METOP-C satellite orbits during SNOs since TLE Epoch: 7/7/2025
Download SNOs between NOAA-21 and METOP-C since TLE EPOCH: 07/07/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-C