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: 9/18/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/19/2025 09:24:20 0.55, 61.33 0.38, 60.53 90.54 80
2 09/20/2025 09:08:18 0.56, 61.33 1.41, 65.06 425.58 80
3 09/21/2025 21:30:07 -0.53, 61.37 -0.18, 59.80 179.18 80
4 09/22/2025 21:08:45 -0.55, 61.37 -1.21, 64.32 335.88 80
5 09/24/2025 09:33:24 0.52, 61.33 0.02, 59.01 264.30 80
6 09/25/2025 09:12:02 0.54, 61.33 1.06, 63.53 251.37 80
7 09/26/2025 21:36:31 -0.50, 61.37 0.18, 58.27 352.96 80
8 09/27/2025 21:15:08 -0.52, 61.38 -0.86, 62.79 161.21 80
9 09/29/2025 09:39:47 0.48, 61.37 -0.37, 57.49 441.32 80
10 09/30/2025 09:18:24 0.51, 61.37 0.67, 62.01 73.43 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 9/18/2025
SNOs_Map_GOES-15_NPP_20250919.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 09/18/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP