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: 10/27/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/29/2025 07:45:56 -0.14, -89.49 0.84, -93.84 496.84 80
2 10/30/2025 07:24:33 -0.17, -89.48 -0.20, -89.32 18.72 80
3 11/01/2025 19:30:26 0.15, -89.50 0.02, -90.08 66.55 80
4 11/02/2025 19:09:02 0.17, -89.50 1.07, -85.56 449.93 80
5 11/04/2025 07:33:31 -0.13, -89.50 0.16, -90.81 150.29 80
6 11/05/2025 07:12:07 -0.15, -89.49 -0.88, -86.29 365.67 80
7 11/06/2025 19:36:42 0.11, -89.50 -0.38, -91.57 235.99 80
8 11/07/2025 19:15:19 0.13, -89.51 0.67, -87.04 280.40 80
9 11/09/2025 07:39:47 -0.09, -89.50 0.55, -92.30 319.09 80
10 11/10/2025 07:18:24 -0.12, -89.51 -0.50, -87.78 196.92 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 10/27/2025
SNOs_Map_GOES-17_NPP_20251028.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 10/27/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP