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: 10/30/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 11/01/2025 19:30:26 0.15, -89.51 0.02, -90.08 65.70 80
2 11/02/2025 19:09:02 0.17, -89.51 1.07, -85.56 450.96 80
3 11/04/2025 07:33:31 -0.13, -89.50 0.16, -90.81 149.22 80
4 11/05/2025 07:12:07 -0.15, -89.50 -0.88, -86.29 366.89 80
5 11/06/2025 19:36:43 0.11, -89.52 -0.33, -91.58 234.29 80
6 11/07/2025 19:15:19 0.13, -89.52 0.67, -87.04 282.29 80
7 11/09/2025 07:39:47 -0.09, -89.52 0.56, -92.30 317.15 80
8 11/10/2025 07:18:24 -0.12, -89.52 -0.50, -87.78 199.03 80
9 11/11/2025 19:43:00 0.07, -89.54 -0.70, -93.07 402.20 80
10 11/12/2025 19:21:37 0.10, -89.55 0.36, -88.55 115.09 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 10/30/2025
SNOs_Map_GOES-17_NPP_20251031.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 10/30/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP