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: 3/12/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 03/13/2025 21:24:39 0.10, 61.25 0.36, 59.96 146.26 80
2 03/14/2025 21:05:53 0.10, 61.25 -0.63, 64.51 371.30 80
3 03/16/2025 09:30:27 -0.10, 61.33 -0.55, 59.21 240.63 80
4 03/17/2025 09:09:01 -0.10, 61.33 0.44, 63.76 276.65 80
5 03/18/2025 21:30:47 0.10, 61.25 0.70, 58.49 313.59 80
6 03/19/2025 21:14:41 0.10, 61.25 -0.30, 63.04 203.37 80
7 03/21/2025 09:36:34 -0.10, 61.34 -0.93, 57.75 409.66 80
8 03/22/2025 09:16:37 -0.11, 61.35 0.12, 62.28 106.88 9
9 03/23/2025 21:36:54 0.11, 61.28 1.05, 57.03 484.63 80
10 03/24/2025 21:20:47 0.12, 61.29 0.05, 61.57 31.73 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 3/12/2025
SNOs_Map_GOES-15_NPP_20250313.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 03/12/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP