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: 7/15/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 07/16/2025 07:12:50 -0.05, -89.49 -0.80, -86.22 373.40 80
2 07/17/2025 19:32:07 0.06, -89.53 -0.39, -91.52 226.37 80
3 07/18/2025 19:16:02 0.06, -89.54 0.62, -86.98 290.71 80
4 07/20/2025 07:35:10 -0.07, -89.51 0.54, -92.25 312.74 80
5 07/21/2025 07:19:06 -0.07, -89.51 -0.48, -87.72 204.31 80
6 07/22/2025 19:38:22 0.08, -89.55 -0.71, -93.02 395.48 80
7 07/23/2025 19:22:18 0.08, -89.56 0.30, -88.48 121.82 80
8 07/25/2025 07:41:26 -0.09, -89.53 0.85, -93.75 480.90 80
9 07/26/2025 07:25:22 -0.09, -89.54 -0.17, -89.22 36.99 80
10 07/28/2025 19:25:53 0.09, -89.61 -0.00, -89.99 42.90 80
11 07/29/2025 19:09:49 0.09, -89.63 1.02, -85.45 475.56 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 7/15/2025
SNOs_Map_GOES-17_NPP_20250716.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 07/15/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP