Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-15 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/23/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 03/24/2025 21:20:46 0.11, 61.25 0.02, 61.57 37.40 80
2 03/27/2025 09:21:12 -0.11, 61.33 -0.25, 60.84 56.17 80
3 03/28/2025 09:05:06 -0.12, 61.33 0.77, 65.38 460.90 80
4 03/29/2025 21:24:10 0.11, 61.28 0.40, 60.13 131.85 80
5 03/30/2025 21:08:03 0.11, 61.29 -0.64, 64.67 384.96 80
6 04/01/2025 09:27:17 -0.11, 61.37 -0.54, 59.38 226.42 80
7 04/02/2025 09:11:09 -0.11, 61.38 0.44, 63.93 289.88 80
8 04/03/2025 21:30:13 0.11, 61.34 0.70, 58.67 304.16 80
9 04/04/2025 21:14:06 0.12, 61.36 -0.29, 63.22 212.10 80
10 04/06/2025 09:33:18 -0.11, 61.44 -0.93, 57.94 399.62 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 3/23/2025
SNOs_Map_GOES-15_NPP_20250324.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 03/23/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP