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: 8/22/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 08/22/2025 21:11:26 -0.53, 61.76 -0.78, 62.77 115.49 80
2 08/24/2025 09:33:22 0.54, 61.72 -0.41, 57.47 484.50 80
3 08/25/2025 09:17:17 0.54, 61.73 0.57, 62.01 30.70 80
4 08/27/2025 21:20:19 -0.54, 61.84 -0.40, 61.28 64.69 80
5 08/28/2025 20:58:54 -0.54, 61.87 -1.44, 65.81 449.29 80
6 08/30/2025 09:20:51 0.54, 61.84 0.27, 60.50 151.97 80
7 08/31/2025 09:04:45 0.55, 61.86 1.25, 65.04 362.22 80
8 09/01/2025 21:26:31 -0.55, 61.96 -0.03, 59.79 248.10 80
9 09/02/2025 21:05:07 -0.55, 61.99 -1.08, 64.32 264.98 80
10 09/04/2025 09:27:02 0.55, 61.99 -0.14, 59.02 338.28 80

Figure of GOES-15 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 8/22/2025
SNOs_Map_GOES-15_NOAA-20_20250823.jpg

Download SNOs between GOES-15 and NOAA-20 since TLE EPOCH: 08/22/2025 in txt file.

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