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: 7/24/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 07/26/2025 21:17:43 -0.40, 61.41 -0.37, 61.22 22.17 80
2 07/27/2025 21:01:39 -0.39, 61.42 -1.39, 65.75 493.55 80
3 07/29/2025 09:20:56 0.42, 61.36 0.24, 60.44 104.97 80
4 07/30/2025 09:04:50 0.41, 61.37 1.20, 64.98 410.90 80
5 07/31/2025 21:23:59 -0.43, 61.46 -0.07, 59.70 199.37 80
6 08/01/2025 21:07:53 -0.43, 61.47 -1.03, 64.25 315.79 80
7 08/03/2025 09:27:10 0.45, 61.43 -0.12, 58.94 284.34 80
8 08/04/2025 09:11:06 0.45, 61.44 0.91, 63.47 230.67 80
9 08/05/2025 21:30:13 -0.47, 61.54 0.28, 58.20 380.06 80
10 08/06/2025 21:14:09 -0.46, 61.56 -0.75, 62.73 134.27 80

Figure of GOES-15 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 7/24/2025
SNOs_Map_GOES-15_NOAA-20_20250725.jpg

Download SNOs between GOES-15 and NOAA-20 since TLE EPOCH: 07/24/2025 in txt file.

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