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: 9/20/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/21/2025 21:30:07 -0.53, 61.36 -0.19, 59.79 178.77 80
2 09/22/2025 21:08:45 -0.55, 61.37 -1.23, 64.31 336.35 80
3 09/24/2025 09:33:23 0.52, 61.33 -0.01, 59.02 263.78 80
4 09/25/2025 09:12:01 0.54, 61.33 1.03, 63.54 251.89 80
5 09/26/2025 21:36:30 -0.50, 61.37 0.21, 58.28 352.34 80
6 09/27/2025 21:15:08 -0.53, 61.38 -0.83, 62.80 161.89 80
7 09/29/2025 09:39:46 0.48, 61.36 -0.40, 57.50 440.59 80
8 09/30/2025 09:18:23 0.51, 61.37 0.65, 62.02 74.21 80
9 10/02/2025 21:24:10 -0.50, 61.42 -0.45, 61.28 15.80 80
10 10/03/2025 21:02:48 -0.52, 61.43 -1.50, 65.80 497.80 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 9/20/2025
SNOs_Map_GOES-15_NPP_20250921.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 09/20/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP