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: 10/9/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/10/2025 19:42:36 0.21, -89.51 -0.58, -93.13 411.85 80
2 10/11/2025 19:21:13 0.22, -89.51 0.43, -88.60 104.00 80
3 10/13/2025 07:45:42 -0.20, -89.48 0.78, -93.87 499.47 80
4 10/14/2025 07:24:19 -0.22, -89.48 -0.24, -89.34 16.20 80
5 10/16/2025 19:30:14 0.21, -89.52 0.10, -90.12 68.04 80
6 10/17/2025 19:08:50 0.23, -89.53 1.12, -85.59 448.86 80
7 10/19/2025 07:33:20 -0.20, -89.51 0.09, -90.85 152.45 80
8 10/20/2025 07:11:56 -0.22, -89.52 -0.93, -86.32 364.21 80
9 10/21/2025 19:36:33 0.19, -89.56 -0.26, -91.62 235.31 80
10 10/22/2025 19:15:10 0.20, -89.57 0.76, -87.10 281.98 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 10/9/2025
SNOs_Map_GOES-17_NPP_20251010.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 10/09/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP