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: 8/18/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 08/18/2025 | 22:31:16 | 0.02,-137.00 | 0.18,-136.25 | 84.93 | 80 |
| 2 | 08/21/2025 | 10:31:38 | -0.03,-136.99 | -0.00,-136.98 | 2.68 | 80 |
| 3 | 08/23/2025 | 22:34:50 | 0.03,-137.01 | -0.12,-137.77 | 85.67 | 80 |
| 4 | 08/24/2025 | 22:18:45 | 0.03,-137.01 | 0.86,-133.23 | 431.11 | 80 |
| 5 | 08/26/2025 | 10:40:33 | -0.03,-137.00 | 0.30,-138.50 | 170.71 | 80 |
| 6 | 08/27/2025 | 10:19:09 | -0.03,-137.00 | -0.73,-133.97 | 345.64 | 80 |
| 7 | 08/28/2025 | 22:41:04 | 0.03,-137.01 | -0.46,-139.27 | 257.81 | 80 |
| 8 | 08/29/2025 | 22:24:58 | 0.03,-137.00 | 0.52,-134.73 | 258.08 | 80 |
| 9 | 08/31/2025 | 10:46:47 | -0.03,-136.98 | 0.64,-140.01 | 345.23 | 80 |
| 10 | 09/01/2025 | 10:25:22 | -0.04,-136.97 | -0.39,-135.48 | 170.04 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/18/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 08/18/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21