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: 8/28/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 08/29/2025 19:26:12 0.19, -89.53 0.07, -89.96 49.34 80
2 08/30/2025 19:10:10 0.20, -89.54 1.14, -85.45 467.01 80
3 09/01/2025 07:32:01 -0.20, -89.51 0.06, -90.72 137.74 80
4 09/02/2025 07:10:38 -0.21, -89.51 -0.95, -86.19 378.37 80
5 09/03/2025 19:32:38 0.21, -89.56 -0.23, -91.51 222.36 80
6 09/04/2025 19:16:36 0.22, -89.57 0.79, -86.98 294.17 80
7 09/06/2025 07:38:26 -0.22, -89.54 0.40, -92.26 309.53 80
8 09/07/2025 07:17:04 -0.22, -89.55 -0.61, -87.73 207.14 80
9 09/08/2025 19:39:04 0.22, -89.60 -0.55, -93.05 392.92 80
10 09/09/2025 19:23:02 0.22, -89.61 0.47, -88.52 124.19 80
11 09/11/2025 07:44:52 -0.22, -89.60 0.72, -93.80 478.54 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 8/28/2025
SNOs_Map_GOES-17_NPP_20250829.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 08/28/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP