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: 10/26/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/27/2025 19:21:28 0.18, -89.50 0.38, -88.59 104.81 80
2 10/29/2025 07:45:56 -0.14, -89.49 0.86, -93.84 496.43 80
3 10/30/2025 07:24:33 -0.17, -89.49 -0.18, -89.31 19.58 80
4 11/01/2025 19:30:25 0.15, -89.51 -0.00, -90.08 65.67 80
5 11/02/2025 19:09:02 0.17, -89.51 1.04, -85.55 451.04 80
6 11/04/2025 07:33:31 -0.13, -89.51 0.14, -90.82 148.92 80
7 11/05/2025 07:12:07 -0.15, -89.51 -0.85, -86.28 367.24 80
8 11/06/2025 19:36:43 0.11, -89.52 -0.36, -91.57 234.22 80
9 11/07/2025 19:15:20 0.13, -89.53 0.69, -87.05 282.29 80
10 11/09/2025 07:39:48 -0.09, -89.53 0.53, -92.31 316.92 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 10/26/2025
SNOs_Map_GOES-17_NPP_20251027.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 10/26/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP