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: 8/29/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 08/31/2025 21:23:10 -0.55, 61.55 -0.53, 61.40 16.30 80
2 09/03/2025 09:23:48 0.55, 61.47 0.36, 60.61 97.83 80
3 09/04/2025 09:07:46 0.56, 61.46 1.37, 65.13 419.04 80
4 09/05/2025 21:29:36 -0.55, 61.49 -0.18, 59.86 185.38 80
5 09/06/2025 21:08:14 -0.56, 61.48 -1.20, 64.39 330.72 80
6 09/08/2025 09:30:14 0.55, 61.43 0.03, 59.07 268.64 80
7 09/09/2025 09:14:11 0.56, 61.42 1.05, 63.59 247.98 80
8 09/10/2025 21:36:02 -0.54, 61.45 0.14, 58.32 355.89 80
9 09/11/2025 21:14:39 -0.55, 61.45 -0.89, 62.84 159.47 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 8/29/2025
SNOs_Map_GOES-15_NPP_20250830.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 08/29/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP