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: 7/11/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 07/12/2025 19:25:50 0.05, -89.39 -0.11, -90.01 70.34 80
2 07/13/2025 19:09:45 0.05, -89.14 0.90, -85.47 419.06 80
3 07/15/2025 07:28:52 -0.06, -88.75 0.39, -90.71 224.25 80
4 07/16/2025 07:12:46 -0.05, -88.50 -0.56, -86.17 265.58 80
5 07/17/2025 19:32:02 0.06, -88.14 -0.69, -91.45 378.02 80
6 07/18/2025 19:15:56 0.06, -87.89 0.27, -86.90 111.59 80
7 07/21/2025 07:16:18 -0.07, -87.24 0.01, -87.61 42.36 80
8 07/22/2025 07:00:12 -0.07, -86.99 -0.95, -83.07 447.42 80
9 07/23/2025 19:19:28 0.08, -86.63 -0.30, -88.35 195.77 80
10 07/24/2025 19:03:22 0.08, -86.39 0.65, -83.80 294.29 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 7/11/2025
SNOs_Map_GOES-17_NPP_20250712.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 07/11/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP