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: 3/29/2023
| 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 | 03/30/2023 | 06:44:41 | 70.64, 74.22 | 66.95 | 03/30/2023 | 06:45:50 | 70.52, 75.50 | 66.77 | 49.26 | 69 |
| 2 | 03/30/2023 | 07:35:14 | -70.08,-117.58 | 113.66 | 03/30/2023 | 07:35:26 | -70.07,-117.51 | 113.67 | 2.76 | 12 |
| 3 | 03/30/2023 | 08:25:57 | 69.91, 49.98 | 66.15 | 03/30/2023 | 08:24:54 | 69.91, 49.91 | 66.16 | 2.77 | 63 |
| 4 | 04/01/2023 | 23:01:22 | 70.14,-169.21 | 65.38 | 04/01/2023 | 23:02:20 | 70.11,-169.19 | 65.34 | 2.54 | 58 |
| 5 | 04/01/2023 | 23:52:03 | -69.99, -1.68 | 114.79 | 04/01/2023 | 23:51:50 | -70.00, -1.72 | 114.78 | 1.54 | 13 |
| 6 | 04/02/2023 | 00:42:36 | 69.30, 166.65 | 64.48 | 04/02/2023 | 00:41:27 | 69.34, 165.03 | 64.58 | 63.79 | 69 |
| 7 | 04/04/2023 | 15:18:12 | 70.07, -53.33 | 64.28 | 04/04/2023 | 15:18:44 | 70.05, -53.38 | 64.25 | 3.25 | 32 |
| 8 | 04/04/2023 | 16:08:54 | -69.98, 114.13 | 115.84 | 04/04/2023 | 16:08:13 | -69.99, 114.17 | 115.83 | 2.01 | 41 |
| 9 | 04/07/2023 | 06:44:24 | -70.44,-105.43 | 116.35 | 04/07/2023 | 06:45:36 | -70.32,-104.74 | 116.50 | 29.34 | 72 |
| 10 | 04/07/2023 | 07:35:02 | 70.02, 62.53 | 63.20 | 04/07/2023 | 07:35:06 | 70.04, 62.51 | 63.22 | 2.35 | 4 |
| 11 | 04/07/2023 | 08:25:44 | -69.93,-130.01 | 116.91 | 04/07/2023 | 08:24:36 | -69.93,-130.01 | 116.90 | 0.27 | 68 |
| 12 | 04/09/2023 | 23:01:08 | -70.09, 10.90 | 117.72 | 04/09/2023 | 23:02:01 | -70.10, 10.86 | 117.72 | 2.25 | 53 |
| 13 | 04/09/2023 | 23:51:52 | 69.98, 178.37 | 62.16 | 04/09/2023 | 23:51:28 | 69.98, 178.34 | 62.16 | 1.21 | 24 |
| 14 | 04/10/2023 | 00:42:19 | -69.09, -13.03 | 118.78 | 04/10/2023 | 00:41:11 | -69.16, -15.14 | 118.65 | 84.21 | 68 |
| 15 | 04/12/2023 | 14:27:31 | 71.00, -42.09 | 62.26 | 04/12/2023 | 14:28:37 | 70.92, -39.64 | 62.11 | 89.45 | 66 |
| 16 | 04/12/2023 | 15:17:57 | -70.06, 126.73 | 118.74 | 04/12/2023 | 15:18:21 | -70.05, 126.70 | 118.76 | 1.85 | 24 |
| 17 | 04/12/2023 | 16:08:41 | 69.96, -65.81 | 61.15 | 04/12/2023 | 16:07:47 | 69.98, -65.75 | 61.17 | 3.52 | 54 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/29/2023
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/29/2023 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9