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: 10/18/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/19/2025 21:03:05 -0.43, 61.47 -1.43, 65.81 496.24 80
2 10/21/2025 09:27:40 0.36, 61.47 0.12, 60.54 106.44 80
3 10/22/2025 09:06:17 0.40, 61.47 1.21, 65.06 408.30 80
4 10/23/2025 21:30:46 -0.33, 61.50 0.04, 59.80 193.20 80
5 10/24/2025 21:09:22 -0.37, 61.52 -0.99, 64.33 319.92 80
6 10/26/2025 09:33:59 0.29, 61.55 -0.24, 59.04 285.33 80
7 10/27/2025 09:12:35 0.34, 61.56 0.79, 63.57 228.52 80
8 10/28/2025 21:37:03 -0.26, 61.58 0.45, 58.31 372.25 80
9 10/29/2025 21:15:40 -0.31, 61.61 -0.59, 62.84 140.24 80
10 10/31/2025 09:40:15 0.23, 61.66 -0.69, 57.56 467.05 80
11 11/01/2025 09:18:52 0.28, 61.68 0.36, 62.09 46.45 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 10/18/2025
SNOs_Map_GOES-15_NPP_20251019.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 10/18/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP