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: 5/16/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 05/16/2025 21:25:40 0.02, 61.71 0.43, 59.89 207.40 80
2 05/17/2025 21:09:37 0.03, 61.70 -0.59, 64.42 310.94 80
3 05/19/2025 09:28:55 -0.01, 61.65 -0.58, 59.11 289.66 80
4 05/20/2025 09:12:52 -0.02, 61.64 0.45, 63.64 228.50 80
5 05/21/2025 21:32:01 -0.00, 61.64 0.72, 58.37 372.60 80
6 05/22/2025 21:15:56 0.01, 61.63 -0.25, 62.91 145.41 80
7 05/24/2025 09:35:15 0.02, 61.59 -0.90, 57.59 455.74 80
8 05/25/2025 09:19:11 0.01, 61.58 0.13, 62.12 61.70 80
9 05/27/2025 21:19:37 -0.03, 61.59 -0.00, 61.37 23.95 80
10 05/28/2025 21:03:33 -0.01, 61.58 -0.98, 65.91 493.19 80
11 05/30/2025 09:22:51 0.04, 61.56 -0.15, 60.60 108.97 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 5/16/2025
SNOs_Map_GOES-15_NPP_20250517.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 05/16/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP