Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between GOES-18 and NOAA-21 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/27/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 04/27/2025 | 22:48:57 | 0.01,-137.00 | -0.76,-140.52 | 400.03 | 80 |
| 2 | 04/28/2025 | 22:27:34 | 0.01,-137.00 | 0.24,-135.99 | 115.30 | 80 |
| 3 | 04/30/2025 | 10:52:04 | -0.01,-136.99 | 0.95,-141.27 | 487.70 | 80 |
| 4 | 05/01/2025 | 10:30:41 | -0.01,-136.98 | -0.06,-136.74 | 27.23 | 80 |
| 5 | 05/03/2025 | 22:33:54 | 0.00,-136.96 | -0.15,-137.52 | 64.27 | 80 |
| 6 | 05/04/2025 | 22:17:51 | 0.00,-136.95 | 0.86,-132.99 | 450.64 | 80 |
| 7 | 05/06/2025 | 10:37:01 | 0.00,-136.93 | 0.31,-138.27 | 152.91 | 80 |
| 8 | 05/07/2025 | 10:20:58 | 0.00,-136.92 | -0.71,-133.75 | 361.87 | 80 |
| 9 | 05/08/2025 | 22:40:15 | -0.00,-136.91 | -0.48,-139.06 | 244.74 | 80 |
| 10 | 05/09/2025 | 22:24:12 | -0.00,-136.90 | 0.54,-134.53 | 269.79 | 80 |
| 11 | 05/11/2025 | 10:43:21 | 0.00,-136.87 | 0.68,-139.80 | 334.60 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/27/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/27/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21