Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-15 and NOAA-20 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/19/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 10/20/2025 21:04:41 -0.42, 61.47 -1.11, 64.53 347.99 80
2 10/22/2025 09:29:20 0.35, 61.48 -0.18, 59.23 256.65 80
3 10/23/2025 09:07:58 0.39, 61.49 0.86, 63.75 257.00 80
4 10/24/2025 21:32:29 -0.31, 61.51 0.36, 58.47 345.91 80
5 10/25/2025 21:11:08 -0.36, 61.53 -0.70, 62.99 166.15 80
6 10/27/2025 09:35:46 0.28, 61.57 -0.58, 57.69 441.13 80
7 10/28/2025 09:14:25 0.33, 61.58 0.47, 62.21 71.68 80
8 10/30/2025 21:20:14 -0.29, 61.62 -0.27, 61.46 18.52 80
9 10/31/2025 20:58:52 -0.34, 61.65 -1.33, 65.97 493.05 80
10 11/02/2025 09:23:29 0.25, 61.70 0.00, 60.69 115.39 80

Figure of GOES-15 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 10/19/2025
SNOs_Map_GOES-15_NOAA-20_20251020.jpg

Download SNOs between GOES-15 and NOAA-20 since TLE EPOCH: 10/19/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NOAA-20