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: 6/9/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 06/10/2025 09:19:25 0.10, 61.34 0.26, 62.10 86.36 80
2 06/12/2025 21:22:30 -0.12, 61.37 -0.14, 61.35 3.32 80
3 06/15/2025 09:23:03 0.14, 61.33 -0.02, 60.58 84.63 80
4 06/16/2025 09:06:59 0.12, 61.32 0.97, 65.12 432.31 80
5 06/17/2025 21:26:08 -0.15, 61.37 0.19, 59.84 173.63 80
6 06/18/2025 21:10:04 -0.14, 61.37 -0.80, 64.38 343.09 80
7 06/20/2025 09:29:21 0.17, 61.33 -0.35, 59.07 257.58 80
8 06/21/2025 09:13:16 0.16, 61.33 0.65, 63.61 258.71 80
9 06/22/2025 21:32:26 -0.20, 61.39 0.52, 58.34 348.52 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 6/9/2025
SNOs_Map_GOES-15_NPP_20250610.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 06/09/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP