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: 7/8/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 07/09/2025 07:41:27 -0.05, -90.70 0.67, -93.84 357.89 80
2 07/10/2025 07:25:21 -0.05, -90.17 -0.22, -89.28 101.26 80
3 07/12/2025 19:25:48 0.05, -88.85 -0.20, -89.99 128.99 80
4 07/13/2025 19:09:42 0.05, -88.33 0.70, -85.43 330.58 80
5 07/15/2025 07:28:47 -0.06, -87.50 0.66, -90.65 359.19 80
6 07/16/2025 07:12:41 -0.05, -86.98 -0.24, -86.09 100.61 80
7 07/18/2025 19:13:09 0.06, -85.68 -0.17, -86.81 128.50 80
8 07/19/2025 18:57:02 0.06, -85.15 0.72, -82.25 331.33 80
9 07/21/2025 07:16:07 -0.07, -84.33 0.62, -87.47 358.18 80
10 07/22/2025 07:00:01 -0.07, -83.81 -0.28, -82.92 101.63 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 7/8/2025
SNOs_Map_GOES-17_NPP_20250709.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 07/08/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP