Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/22/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 11/23/2025 | 14:53:44 | -70.13, 132.85 | 89.50 | 11/23/2025 | 14:54:35 | -70.15, 132.91 | 89.49 | 2.72 | 51 |
| 2 | 11/23/2025 | 15:44:28 | 70.02, -59.66 | 90.39 | 11/23/2025 | 15:44:03 | 69.99, -59.67 | 90.36 | 3.04 | 25 |
| 3 | 11/23/2025 | 16:34:54 | -69.07, 109.03 | 90.55 | 11/23/2025 | 16:33:47 | -69.11, 106.78 | 90.52 | 89.52 | 67 |
| 4 | 11/26/2025 | 06:20:16 | 70.94, 79.99 | 91.84 | 11/26/2025 | 06:21:23 | 70.85, 82.20 | 91.74 | 81.21 | 67 |
| 5 | 11/26/2025 | 07:10:44 | -70.10,-111.35 | 89.01 | 11/26/2025 | 07:11:05 | -70.09,-111.30 | 89.03 | 2.84 | 21 |
| 6 | 11/26/2025 | 08:01:28 | 69.99, 56.13 | 90.89 | 11/26/2025 | 08:00:32 | 69.98, 56.20 | 90.87 | 3.12 | 56 |
| 7 | 11/28/2025 | 22:37:01 | 70.14,-162.96 | 91.50 | 11/28/2025 | 22:38:04 | 70.16,-162.94 | 91.52 | 2.50 | 63 |
| 8 | 11/28/2025 | 23:27:43 | -70.03, 4.52 | 88.61 | 11/28/2025 | 23:27:34 | -70.05, 4.54 | 88.58 | 2.90 | 9 |
| 9 | 11/29/2025 | 00:18:19 | 69.50, 172.61 | 90.87 | 11/29/2025 | 00:17:08 | 69.56, 171.50 | 90.93 | 43.82 | 71 |
| 10 | 12/01/2025 | 14:53:59 | 70.08, -47.11 | 91.87 | 12/01/2025 | 14:54:32 | 70.10, -47.14 | 91.89 | 3.01 | 33 |
| 11 | 12/01/2025 | 15:44:42 | -70.01, 120.30 | 88.19 | 12/01/2025 | 15:44:02 | -70.00, 120.35 | 88.21 | 2.38 | 40 |
| 12 | 12/04/2025 | 06:20:19 | -70.37, -99.13 | 87.46 | 12/04/2025 | 06:21:31 | -70.30, -98.62 | 87.54 | 20.86 | 72 |
| 13 | 12/04/2025 | 07:10:59 | 70.07, 68.65 | 92.25 | 12/04/2025 | 07:11:00 | 70.08, 68.71 | 92.25 | 2.39 | 1 |
| 14 | 12/04/2025 | 08:01:41 | -69.95,-123.85 | 87.88 | 12/04/2025 | 08:00:30 | -69.97,-123.80 | 87.85 | 3.22 | 71 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/22/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8