Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-14 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/19/2025
Index Date Time (GOES-14) GOES-14 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/20/2025 20:58:23 0.87,-108.35 -0.03,-112.24 444.60 80
2 09/21/2025 20:37:02 0.90,-108.36 1.06,-107.73 71.83 80
3 09/24/2025 08:42:49 -0.87,-108.39 -0.85,-108.47 8.98 80
4 09/26/2025 20:46:04 0.84,-108.39 0.65,-109.25 97.90 80
5 09/27/2025 20:24:42 0.88,-108.40 1.69,-104.73 417.91 80
6 09/29/2025 08:49:11 -0.82,-108.42 -0.45,-109.99 178.68 80
7 09/30/2025 08:27:50 -0.86,-108.42 -1.54,-105.48 336.20 80
8 10/01/2025 20:52:27 0.79,-108.40 0.26,-110.76 269.15 80
9 10/02/2025 20:31:05 0.84,-108.41 1.31,-106.24 246.40 80

Figure of GOES-14 and NPP satellite orbits during SNOs since TLE Epoch: 9/19/2025
SNOs_Map_GOES-14_NPP_20250920.jpg

Download SNOs between GOES-14 and NPP since TLE EPOCH: 09/19/2025 in txt file.

Historical Predications of SNOs between GOES-14 and NPP