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: 5/19/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 05/20/2025 09:12:51 -0.02, 61.63 0.43, 63.64 229.10 80
2 05/21/2025 21:32:00 -0.00, 61.64 0.73, 58.37 372.24 80
3 05/22/2025 21:15:57 0.01, 61.62 -0.29, 62.90 145.81 80
4 05/24/2025 09:35:15 0.02, 61.58 -0.86, 57.59 454.90 80
5 05/25/2025 09:19:11 0.01, 61.57 0.11, 62.13 62.65 80
6 05/27/2025 21:19:37 -0.03, 61.58 0.02, 61.38 23.16 80
7 05/28/2025 21:03:33 -0.01, 61.58 -1.01, 65.91 493.93 80
8 05/30/2025 09:22:50 0.04, 61.55 -0.18, 60.60 107.81 80
9 05/31/2025 09:06:47 0.03, 61.54 0.86, 65.13 409.29 80
10 06/01/2025 21:25:56 -0.06, 61.56 0.32, 59.86 194.12 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 5/19/2025
SNOs_Map_GOES-15_NPP_20250520.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 05/19/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP