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: 10/4/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/05/2025 19:36:15 0.23, -89.52 -0.23, -91.62 239.31 80
2 10/06/2025 19:14:52 0.24, -89.53 0.78, -87.09 277.44 80
3 10/08/2025 07:39:21 -0.22, -89.51 0.44, -92.35 324.94 80
4 10/09/2025 07:17:59 -0.23, -89.51 -0.63, -87.84 191.28 80
5 10/10/2025 19:42:36 0.21, -89.54 -0.59, -93.13 409.36 80
6 10/11/2025 19:21:13 0.22, -89.54 0.42, -88.60 107.23 80
7 10/13/2025 07:45:42 -0.20, -89.53 0.78, -93.87 494.44 80
8 10/14/2025 07:24:19 -0.22, -89.54 -0.29, -89.35 22.13 80
9 10/16/2025 19:30:13 0.21, -89.58 0.12, -90.12 60.98 80
10 10/17/2025 19:08:50 0.23, -89.60 1.14, -85.59 456.70 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 10/4/2025
SNOs_Map_GOES-17_NPP_20251005.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 10/04/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP