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: 11/23/2025
| 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 | -70.15, 132.84 | 89.49 | 11/23/2025 | 14:54:35 | -70.13, 132.89 | 89.50 | 2.46 | 51 |
| 2 | 11/23/2025 | 15:44:28 | 70.03, -59.67 | 90.40 | 11/23/2025 | 15:44:02 | 70.03, -59.61 | 90.40 | 2.53 | 26 |
| 3 | 11/23/2025 | 16:34:54 | -69.09, 109.01 | 90.54 | 11/23/2025 | 16:33:47 | -69.09, 106.76 | 90.53 | 89.49 | 67 |
| 4 | 11/26/2025 | 06:20:16 | 70.95, 79.97 | 91.85 | 11/26/2025 | 06:21:23 | 70.84, 82.18 | 91.73 | 81.62 | 67 |
| 5 | 11/26/2025 | 07:10:43 | -70.06,-111.29 | 89.05 | 11/26/2025 | 07:11:05 | -70.07,-111.32 | 89.04 | 1.30 | 22 |
| 6 | 11/26/2025 | 08:01:27 | 69.95, 56.19 | 90.85 | 11/26/2025 | 08:00:32 | 69.96, 56.18 | 90.86 | 1.35 | 55 |
| 7 | 11/28/2025 | 22:37:01 | 70.15,-162.99 | 91.52 | 11/28/2025 | 22:38:04 | 70.15,-162.96 | 91.51 | 1.25 | 63 |
| 8 | 11/28/2025 | 23:27:43 | -70.04, 4.50 | 88.59 | 11/28/2025 | 23:27:34 | -70.04, 4.52 | 88.60 | 1.09 | 9 |
| 9 | 11/29/2025 | 00:18:18 | 69.46, 172.67 | 90.84 | 11/29/2025 | 00:17:08 | 69.54, 171.48 | 90.92 | 47.14 | 70 |
| 10 | 12/01/2025 | 14:54:00 | 70.09, -47.14 | 91.89 | 12/01/2025 | 14:54:33 | 70.09, -47.16 | 91.88 | 0.90 | 33 |
| 11 | 12/01/2025 | 15:44:42 | -69.98, 120.35 | 88.23 | 12/01/2025 | 15:44:03 | -69.98, 120.33 | 88.22 | 1.02 | 39 |
| 12 | 12/04/2025 | 06:20:19 | -70.40, -99.17 | 87.43 | 12/04/2025 | 06:21:31 | -70.29, -98.63 | 87.55 | 23.37 | 72 |
| 13 | 12/04/2025 | 07:10:58 | 70.04, 68.69 | 92.22 | 12/04/2025 | 07:11:00 | 70.06, 68.69 | 92.24 | 2.19 | 2 |
| 14 | 12/04/2025 | 08:01:41 | -69.97,-123.89 | 87.85 | 12/04/2025 | 08:00:30 | -69.96,-123.82 | 87.87 | 3.02 | 71 |
| 15 | 12/06/2025 | 22:37:14 | -70.14, 16.99 | 87.37 | 12/06/2025 | 22:38:01 | -70.13, 17.03 | 87.38 | 1.47 | 47 |
| 16 | 12/06/2025 | 23:27:57 | 70.00,-175.49 | 92.50 | 12/06/2025 | 23:27:28 | 70.02,-175.49 | 92.52 | 1.67 | 29 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/23/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8