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: 4/15/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 04/17/2025 09:28:14 -0.10, 61.39 -0.60, 59.19 250.46 80
2 04/18/2025 09:12:10 -0.11, 61.40 0.39, 63.72 264.17 80
3 04/19/2025 21:31:21 0.10, 61.39 0.76, 58.44 335.50 80
4 04/20/2025 21:15:17 0.11, 61.40 -0.23, 62.98 179.06 80
5 04/22/2025 09:34:36 -0.10, 61.46 -0.96, 57.67 432.94 80
6 04/23/2025 09:18:33 -0.10, 61.48 0.03, 62.20 81.39 80
7 04/25/2025 21:19:00 0.10, 61.49 0.11, 61.45 4.96 80
8 04/28/2025 09:22:16 -0.09, 61.58 -0.28, 60.67 103.83 80
9 04/29/2025 09:06:12 -0.09, 61.60 0.72, 65.20 409.59 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 4/15/2025
SNOs_Map_GOES-15_NPP_20250416.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 04/15/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP