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: 9/2/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/03/2025 19:32:38 0.21, -89.52 -0.22, -91.51 225.87 80
2 09/04/2025 19:16:36 0.21, -89.52 0.80, -86.98 289.46 80
3 09/06/2025 07:38:26 -0.22, -89.48 0.38, -92.26 315.69 80
4 09/07/2025 07:17:04 -0.22, -89.48 -0.64, -87.73 199.81 80
5 09/08/2025 19:39:03 0.22, -89.51 -0.58, -93.04 402.51 80
6 09/09/2025 19:23:01 0.22, -89.51 0.45, -88.52 113.39 80
7 09/11/2025 07:44:51 -0.22, -89.48 0.73, -93.79 490.74 80
8 09/12/2025 07:23:27 -0.22, -89.48 -0.24, -89.25 24.97 80
9 09/14/2025 19:26:44 0.23, -89.50 0.08, -90.04 62.16 80
10 09/15/2025 19:10:42 0.23, -89.50 1.12, -85.52 453.74 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 9/2/2025
SNOs_Map_GOES-17_NPP_20250903.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 09/02/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP