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: 3/22/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 03/23/2025 21:36:52 0.11, 61.25 1.07, 57.04 480.01 80
2 03/24/2025 21:20:46 0.11, 61.25 0.05, 61.58 37.19 80
3 03/27/2025 09:21:12 -0.11, 61.33 -0.23, 60.83 56.45 80
4 03/28/2025 09:05:06 -0.12, 61.34 0.80, 65.37 460.48 80
5 03/29/2025 21:24:10 0.11, 61.28 0.37, 60.12 132.26 80
6 03/30/2025 21:08:04 0.11, 61.29 -0.66, 64.66 384.46 80
7 04/01/2025 09:27:16 -0.11, 61.37 -0.57, 59.39 227.06 80
8 04/02/2025 09:11:10 -0.11, 61.39 0.47, 63.92 289.19 80
9 04/03/2025 21:30:13 0.11, 61.35 0.74, 58.68 304.90 80
10 04/04/2025 21:14:06 0.12, 61.36 -0.31, 63.22 211.32 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 3/22/2025
SNOs_Map_GOES-15_NPP_20250323.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 03/22/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP