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: 10/25/2025
| 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 | 10/25/2025 | 07:10:20 | -70.11,-111.28 | 97.79 | 10/25/2025 | 07:11:01 | -70.11,-111.23 | 97.79 | 2.06 | 41 |
| 2 | 10/25/2025 | 08:01:04 | 69.96, 56.25 | 82.08 | 10/25/2025 | 08:00:29 | 69.96, 56.19 | 82.07 | 2.09 | 35 |
| 3 | 10/27/2025 | 22:36:43 | 70.97,-164.20 | 83.98 | 10/27/2025 | 22:37:49 | 70.87,-161.87 | 83.88 | 85.38 | 66 |
| 4 | 10/27/2025 | 23:27:09 | -70.07, 4.56 | 96.92 | 10/27/2025 | 23:27:32 | -70.05, 4.55 | 96.95 | 3.00 | 23 |
| 5 | 10/28/2025 | 00:17:53 | 69.93, 172.09 | 82.96 | 10/28/2025 | 00:16:59 | 69.94, 172.04 | 82.96 | 1.88 | 54 |
| 6 | 10/30/2025 | 14:53:20 | 70.27, -47.26 | 84.16 | 10/30/2025 | 14:54:31 | 70.22, -46.97 | 84.10 | 12.56 | 71 |
| 7 | 10/30/2025 | 15:43:59 | -70.05, 120.40 | 96.06 | 10/30/2025 | 15:44:02 | -70.06, 120.44 | 96.05 | 1.85 | 3 |
| 8 | 10/30/2025 | 16:34:43 | 69.91, -72.09 | 83.82 | 10/30/2025 | 16:33:30 | 69.89, -72.15 | 83.80 | 3.07 | 73 |
| 9 | 11/02/2025 | 07:10:08 | 70.15, 68.71 | 84.90 | 11/02/2025 | 07:11:02 | 70.14, 68.80 | 84.88 | 3.47 | 54 |
| 10 | 11/02/2025 | 08:00:49 | -70.03,-123.78 | 95.22 | 11/02/2025 | 08:00:32 | -70.03,-123.72 | 95.22 | 2.43 | 17 |
| 11 | 11/02/2025 | 08:51:19 | 69.15, 44.80 | 83.93 | 11/02/2025 | 08:50:12 | 69.20, 42.80 | 83.96 | 79.43 | 67 |
| 12 | 11/04/2025 | 23:26:57 | 70.09,-175.40 | 85.67 | 11/04/2025 | 23:27:32 | 70.08,-175.41 | 85.65 | 1.87 | 35 |
| 13 | 11/05/2025 | 00:17:38 | -69.97, -7.89 | 94.46 | 11/05/2025 | 00:17:02 | -69.98, -7.92 | 94.45 | 1.59 | 36 |
| 14 | 11/07/2025 | 14:53:14 | -70.84, 131.89 | 92.80 | 11/07/2025 | 14:54:22 | -70.76, 133.83 | 92.88 | 71.76 | 68 |
| 15 | 11/07/2025 | 15:43:45 | 70.05, -59.54 | 86.42 | 11/07/2025 | 15:44:00 | 70.04, -59.58 | 86.41 | 1.67 | 15 |
| 16 | 11/07/2025 | 16:34:27 | -69.96, 107.91 | 93.66 | 11/07/2025 | 16:33:30 | -69.94, 107.92 | 93.68 | 2.53 | 57 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/25/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/25/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8