Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/9/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (TERRA) | Time (TERRA) | Lat,Lon (TERRA) | SZA (TERRA ) | Distance(km) | Time Diff (sec) |
| 1 | 10/10/2025 | 04:20:52 | 74.41, 102.85 | 81.23 | 10/10/2025 | 04:21:22 | 74.39, 102.75 | 81.21 | 3.49 | 30 |
| 2 | 10/10/2025 | 05:11:34 | -74.34, -89.66 | 98.84 | 10/10/2025 | 05:10:43 | -74.35, -89.67 | 98.82 | 1.30 | 51 |
| 3 | 10/12/2025 | 14:42:28 | -74.42, 127.44 | 97.86 | 10/12/2025 | 14:42:49 | -74.42, 127.40 | 97.86 | 1.14 | 21 |
| 4 | 10/12/2025 | 15:33:13 | 74.35, -65.08 | 82.08 | 10/12/2025 | 15:32:08 | 74.35, -65.08 | 82.09 | 0.18 | 65 |
| 5 | 10/15/2025 | 01:04:06 | 74.43, 151.99 | 83.06 | 10/15/2025 | 01:04:12 | 74.44, 152.06 | 83.07 | 2.49 | 6 |
| 6 | 10/15/2025 | 01:54:47 | -74.31, -40.38 | 97.07 | 10/15/2025 | 01:53:34 | -74.35, -40.50 | 97.01 | 5.45 | 73 |
| 7 | 10/17/2025 | 10:35:04 | 74.71, 8.52 | 84.24 | 10/17/2025 | 10:36:15 | 74.62, 9.39 | 84.10 | 27.61 | 71 |
| 8 | 10/17/2025 | 11:25:42 | -74.45, 176.56 | 96.05 | 10/17/2025 | 11:25:39 | -74.42, 176.58 | 96.08 | 3.38 | 3 |
| 9 | 10/17/2025 | 12:16:15 | 73.79, -14.50 | 83.27 | 10/17/2025 | 12:15:08 | 73.83, -17.05 | 83.41 | 79.01 | 67 |
| 10 | 10/19/2025 | 20:56:35 | -74.49, 33.73 | 95.14 | 10/19/2025 | 20:57:43 | -74.51, 33.72 | 95.13 | 2.51 | 68 |
| 11 | 10/19/2025 | 21:47:20 | 74.43,-158.80 | 84.82 | 10/19/2025 | 21:47:02 | 74.45,-158.74 | 84.84 | 3.19 | 18 |
| 12 | 10/22/2025 | 07:18:13 | 74.48, 58.35 | 85.72 | 10/22/2025 | 07:19:07 | 74.47, 58.23 | 85.71 | 3.46 | 54 |
| 13 | 10/22/2025 | 08:08:56 | -74.45,-134.25 | 94.31 | 10/22/2025 | 08:08:28 | -74.42,-134.22 | 94.34 | 3.30 | 28 |
Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 10/9/2025
Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 10/09/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and TERRA