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: 11/19/2025
| 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 | 11/20/2025 | 22:36:51 | -70.49, 16.54 | 89.71 | 11/20/2025 | 22:38:02 | -70.40, 17.40 | 89.81 | 33.69 | 71 |
| 2 | 11/20/2025 | 23:27:29 | 70.06,-175.47 | 89.86 | 11/20/2025 | 23:27:33 | 70.08,-175.42 | 89.88 | 3.04 | 4 |
| 3 | 11/21/2025 | 00:18:11 | -69.97, -8.02 | 90.23 | 11/21/2025 | 00:17:03 | -69.97, -7.94 | 90.23 | 2.74 | 68 |
| 4 | 11/23/2025 | 14:53:44 | -70.14, 132.84 | 89.50 | 11/23/2025 | 14:54:35 | -70.15, 132.91 | 89.49 | 2.66 | 51 |
| 5 | 11/23/2025 | 15:44:28 | 70.03, -59.67 | 90.40 | 11/23/2025 | 15:44:02 | 70.04, -59.60 | 90.41 | 3.26 | 26 |
| 6 | 11/23/2025 | 16:34:54 | -69.08, 109.02 | 90.54 | 11/23/2025 | 16:33:47 | -69.11, 106.77 | 90.52 | 89.06 | 67 |
| 7 | 11/26/2025 | 06:20:16 | 70.95, 79.97 | 91.85 | 11/26/2025 | 06:21:23 | 70.85, 82.20 | 91.74 | 81.92 | 67 |
| 8 | 11/26/2025 | 07:10:43 | -70.06,-111.28 | 89.05 | 11/26/2025 | 07:11:05 | -70.09,-111.29 | 89.03 | 3.31 | 22 |
| 9 | 11/26/2025 | 08:01:27 | 69.95, 56.20 | 90.85 | 11/26/2025 | 08:00:32 | 69.98, 56.20 | 90.87 | 3.03 | 55 |
| 10 | 11/28/2025 | 22:37:01 | 70.15,-162.98 | 91.51 | 11/28/2025 | 22:38:04 | 70.16,-162.94 | 91.53 | 2.43 | 63 |
| 11 | 11/28/2025 | 23:27:43 | -70.04, 4.51 | 88.60 | 11/28/2025 | 23:27:34 | -70.06, 4.55 | 88.58 | 3.19 | 9 |
| 12 | 11/29/2025 | 00:18:19 | 69.51, 172.60 | 90.88 | 11/29/2025 | 00:17:08 | 69.56, 171.50 | 90.94 | 43.01 | 71 |
| 13 | 12/01/2025 | 14:54:00 | 70.08, -47.13 | 91.88 | 12/01/2025 | 14:54:33 | 70.11, -47.13 | 91.90 | 2.84 | 33 |
| 14 | 12/01/2025 | 15:44:43 | -70.02, 120.29 | 88.19 | 12/01/2025 | 15:44:03 | -70.01, 120.36 | 88.20 | 2.90 | 40 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/19/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/19/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8