Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/31/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (TERRA) | Time (TERRA) | Lat,Lon (TERRA) | SZA (TERRA ) | Distance(km) | Time Diff (sec) |
| 1 | 10/31/2025 | 23:54:01 | -74.92, -11.78 | 90.54 | 10/31/2025 | 23:55:11 | -74.81, -10.22 | 90.72 | 46.87 | 70 |
| 2 | 11/01/2025 | 00:44:38 | 74.48, 156.74 | 88.99 | 11/01/2025 | 00:44:36 | 74.48, 156.66 | 88.99 | 2.57 | 2 |
| 3 | 11/01/2025 | 01:35:11 | -74.01, -34.75 | 91.51 | 11/01/2025 | 01:34:02 | -74.08, -36.59 | 91.37 | 56.55 | 69 |
| 4 | 11/03/2025 | 10:15:30 | 74.57, 13.78 | 89.84 | 11/03/2025 | 10:16:36 | 74.55, 13.75 | 89.81 | 3.06 | 66 |
| 5 | 11/03/2025 | 11:06:12 | -74.49,-178.69 | 90.24 | 11/03/2025 | 11:05:56 | -74.51,-178.67 | 90.22 | 1.65 | 16 |
| 6 | 11/05/2025 | 20:37:04 | -74.54, 38.48 | 89.46 | 11/05/2025 | 20:37:57 | -74.55, 38.37 | 89.45 | 3.51 | 53 |
| 7 | 11/05/2025 | 21:27:49 | 74.49,-154.08 | 90.51 | 11/05/2025 | 21:27:17 | 74.47,-154.14 | 90.49 | 2.62 | 32 |
| 8 | 11/08/2025 | 06:58:41 | 74.55, 63.05 | 91.28 | 11/08/2025 | 06:59:17 | 74.54, 62.96 | 91.26 | 3.01 | 36 |
| 9 | 11/08/2025 | 07:49:24 | -74.51,-129.52 | 88.76 | 11/08/2025 | 07:48:37 | -74.50,-129.46 | 88.77 | 1.84 | 47 |
| 10 | 11/10/2025 | 17:20:16 | -74.57, 87.61 | 88.02 | 11/10/2025 | 17:20:37 | -74.54, 87.58 | 88.05 | 3.07 | 21 |
| 11 | 11/10/2025 | 18:11:00 | 74.48,-104.85 | 91.90 | 11/10/2025 | 18:09:57 | 74.46,-104.93 | 91.89 | 3.34 | 63 |
| 12 | 11/13/2025 | 02:51:20 | -75.21, -56.89 | 86.66 | 11/13/2025 | 02:52:26 | -75.12, -54.05 | 86.86 | 81.57 | 66 |
| 13 | 11/13/2025 | 03:41:52 | 74.55, 112.25 | 92.63 | 11/13/2025 | 03:41:55 | 74.58, 112.29 | 92.65 | 2.87 | 3 |
Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 10/31/2025
Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 10/31/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and TERRA