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: 9/15/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/16/2025 21:23:43 -0.55, 61.38 -0.54, 61.32 7.02 80
2 09/19/2025 09:24:20 0.55, 61.33 0.37, 60.54 90.85 80
3 09/20/2025 09:08:18 0.56, 61.33 1.41, 65.06 425.26 80
4 09/21/2025 21:30:07 -0.53, 61.37 -0.17, 59.80 179.37 80
5 09/22/2025 21:08:45 -0.55, 61.37 -1.20, 64.32 335.69 80
6 09/24/2025 09:33:24 0.51, 61.34 0.02, 59.01 264.65 80
7 09/25/2025 09:12:01 0.54, 61.33 1.06, 63.53 251.02 80
8 09/26/2025 21:36:31 -0.50, 61.37 0.18, 58.27 353.16 80
9 09/27/2025 21:15:08 -0.52, 61.38 -0.85, 62.79 161.01 80
10 09/29/2025 09:39:46 0.48, 61.37 -0.37, 57.49 441.67 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 9/15/2025
SNOs_Map_GOES-15_NPP_20250916.jpg

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

Historical Predications of SNOs between GOES-15 and NPP