Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-15 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/16/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/16/2025 21:23:44 -0.55, 61.38 -0.56, 61.32 7.55 80
2 09/19/2025 09:24:20 0.55, 61.33 0.39, 60.53 90.82 80
3 09/20/2025 09:08:18 0.56, 61.33 1.43, 65.05 425.33 80
4 09/21/2025 21:30:07 -0.53, 61.37 -0.19, 59.79 179.38 80
5 09/22/2025 21:08:45 -0.55, 61.37 -1.22, 64.32 335.68 80
6 09/24/2025 09:33:23 0.51, 61.34 -0.02, 59.02 264.58 80
7 09/25/2025 09:13:24 0.53, 61.33 1.02, 63.54 251.05 3
8 09/26/2025 21:36:30 -0.50, 61.37 0.22, 58.28 353.20 80
9 09/27/2025 21:15:08 -0.52, 61.38 -0.81, 62.80 161.00 80
10 09/29/2025 09:39:46 0.48, 61.37 -0.41, 57.50 441.63 80
11 09/30/2025 09:18:23 0.51, 61.38 0.64, 62.02 73.14 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 9/16/2025
SNOs_Map_GOES-15_NPP_20250917.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 09/16/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP