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: 10/16/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 10/17/2025 09:22:52 0.41, 61.43 0.23, 60.77 75.88 80
2 10/18/2025 09:01:32 0.45, 61.43 1.33, 65.27 438.28 80
3 10/19/2025 21:26:02 -0.38, 61.46 -0.04, 60.02 165.50 80
4 10/20/2025 21:04:41 -0.42, 61.48 -1.08, 64.53 347.31 80
5 10/22/2025 09:29:20 0.35, 61.49 -0.15, 59.22 257.54 80
6 10/23/2025 09:07:59 0.39, 61.50 0.89, 63.74 255.97 80
7 10/24/2025 21:32:29 -0.31, 61.52 0.39, 58.48 347.02 80
8 10/25/2025 21:11:08 -0.35, 61.54 -0.66, 62.99 164.92 80
9 10/27/2025 09:35:46 0.28, 61.58 -0.62, 57.70 442.64 80
10 10/28/2025 09:14:25 0.32, 61.59 0.49, 62.20 70.13 80

Figure of GOES-15 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 10/16/2025
SNOs_Map_GOES-15_NOAA-20_20251017.jpg

Download SNOs between GOES-15 and NOAA-20 since TLE EPOCH: 10/16/2025 in txt file.

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