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: 11/14/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 11/14/2025 21:15:45 -0.14, 61.79 -0.41, 62.92 130.31 80
2 11/16/2025 09:40:19 0.04, 61.78 -0.89, 57.66 470.07 80
3 11/17/2025 09:18:56 0.09, 61.75 0.18, 62.18 47.98 80
4 11/19/2025 21:24:39 -0.04, 61.68 0.04, 61.46 26.25 80
5 11/20/2025 21:03:15 -0.09, 61.67 -1.03, 65.98 490.44 80
6 11/22/2025 09:27:50 -0.01, 61.68 -0.26, 60.71 111.75 80
7 11/23/2025 09:06:26 0.05, 61.67 0.82, 65.23 405.46 80
8 11/24/2025 21:30:54 0.05, 61.62 0.39, 59.98 186.08 80
9 11/25/2025 21:09:29 -0.01, 61.61 -0.64, 64.51 329.85 80
10 11/27/2025 09:34:03 -0.09, 61.64 -0.64, 59.24 274.37 80
11 11/28/2025 09:12:40 -0.03, 61.63 0.45, 63.76 242.43 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 11/14/2025
SNOs_Map_GOES-15_NPP_20251115.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 11/14/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP