Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/4/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 11/05/2025 07:12:07 -0.15, -89.50 -0.89, -86.29 366.36 80
2 11/06/2025 19:36:43 0.11, -89.51 -0.38, -91.57 235.31 80
3 11/07/2025 19:15:19 0.13, -89.51 0.67, -87.04 280.68 80
4 11/09/2025 07:39:47 -0.09, -89.49 0.55, -92.30 320.01 80
5 11/10/2025 07:18:24 -0.12, -89.49 -0.50, -87.77 195.53 80
6 11/11/2025 19:43:00 0.07, -89.50 -0.70, -93.07 406.25 80
7 11/12/2025 19:21:36 0.10, -89.51 0.29, -88.53 110.46 80
8 11/14/2025 07:46:04 -0.06, -89.51 0.92, -93.79 487.81 80
9 11/15/2025 07:24:41 -0.08, -89.52 -0.14, -89.27 28.72 80
10 11/17/2025 19:30:32 0.06, -89.54 -0.06, -90.02 55.09 80
11 11/18/2025 19:09:09 0.08, -89.55 1.00, -85.50 462.30 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 11/4/2025
SNOs_Map_GOES-17_NPP_20251105.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 11/04/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP