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: 8/29/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/29/2025 22:24:59 0.03,-136.99 0.54,-134.73 258.05 80
2 08/31/2025 10:46:46 -0.03,-136.98 0.67,-139.99 344.10 80
3 09/01/2025 10:25:22 -0.03,-136.97 -0.37,-135.47 171.37 80
4 09/02/2025 22:47:17 0.04,-136.96 -0.82,-140.77 434.28 80
5 09/03/2025 22:31:12 0.04,-136.95 0.23,-136.24 80.92 80
6 09/06/2025 10:34:14 -0.05,-136.91 -0.01,-136.97 7.75 80
7 09/08/2025 22:34:44 0.05,-136.87 -0.17,-137.73 99.14 80
8 09/09/2025 22:18:40 0.05,-136.85 0.89,-133.21 415.42 80
9 09/11/2025 10:40:27 -0.05,-136.81 0.31,-138.47 189.01 80
10 09/12/2025 10:19:01 -0.05,-136.78 -0.68,-133.93 324.81 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/29/2025
SNOs_Map_GOES-18_NOAA-21_20250830.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 08/29/2025 in txt file.

Historical Predications of SNOs between GOES-18 and NOAA-21