Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 1/22/2026
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 01/25/2026 | 05:55:53 | 70.16, 87.39 | 89.13 | 01/25/2026 | 05:56:52 | 70.19, 87.39 | 89.15 | 3.33 | 59 |
| 2 | 01/25/2026 | 06:46:35 | -70.07,-105.16 | 90.98 | 01/25/2026 | 06:46:22 | -70.07,-105.14 | 90.98 | 0.74 | 13 |
| 3 | 01/25/2026 | 07:37:08 | 69.36, 63.19 | 88.28 | 01/25/2026 | 07:35:59 | 69.42, 61.60 | 88.40 | 62.43 | 69 |
| 4 | 01/27/2026 | 22:12:49 | 70.12,-156.79 | 88.41 | 01/27/2026 | 22:13:20 | 70.12,-156.82 | 88.41 | 1.26 | 31 |
| 5 | 01/27/2026 | 23:03:30 | -70.04, 10.66 | 91.69 | 01/27/2026 | 23:02:49 | -70.01, 10.66 | 91.71 | 2.83 | 41 |
| 6 | 01/30/2026 | 13:39:04 | -70.43, 151.20 | 91.97 | 01/30/2026 | 13:40:16 | -70.35, 151.75 | 92.09 | 22.66 | 72 |
| 7 | 01/30/2026 | 14:29:44 | 70.09, -40.97 | 87.67 | 01/30/2026 | 14:29:46 | 70.07, -41.00 | 87.65 | 2.63 | 2 |
| 8 | 01/30/2026 | 15:20:25 | -69.96, 126.55 | 92.49 | 01/30/2026 | 15:19:16 | -69.96, 126.48 | 92.47 | 2.65 | 69 |
| 9 | 02/02/2026 | 05:55:55 | -70.15, -92.60 | 93.02 | 02/02/2026 | 05:56:45 | -70.15, -92.64 | 93.03 | 1.61 | 50 |
| 10 | 02/02/2026 | 06:46:39 | 70.03, 74.90 | 86.85 | 02/02/2026 | 06:46:12 | 70.04, 74.84 | 86.86 | 2.30 | 27 |
| 11 | 02/02/2026 | 07:37:04 | -69.05,-116.36 | 94.20 | 02/02/2026 | 07:35:57 | -69.10,-118.78 | 94.03 | 96.65 | 67 |
| 12 | 02/04/2026 | 21:22:22 | 70.92,-145.37 | 87.02 | 02/04/2026 | 21:23:30 | 70.78,-143.44 | 86.80 | 71.95 | 68 |
| 13 | 02/04/2026 | 22:12:51 | -70.15, 23.17 | 93.81 | 02/04/2026 | 22:13:10 | -70.13, 23.23 | 93.84 | 3.32 | 19 |
| 14 | 02/04/2026 | 23:03:35 | 70.03,-169.32 | 86.05 | 02/04/2026 | 23:02:37 | 70.01,-169.29 | 86.05 | 1.93 | 58 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/22/2026
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/22/2026 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9