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: 3/30/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 03/30/2025 21:08:22 0.11, 61.24 -0.62, 64.59 381.03 80
2 04/01/2025 09:30:22 -0.11, 61.32 -0.55, 59.27 232.41 80
3 04/02/2025 09:11:40 -0.11, 61.32 0.45, 63.80 282.61 80
4 04/03/2025 21:30:50 0.11, 61.27 0.75, 58.53 313.28 80
5 04/04/2025 21:14:48 0.12, 61.28 -0.26, 63.05 201.74 80
6 04/06/2025 09:34:08 -0.11, 61.35 -0.90, 57.73 412.06 80
7 04/07/2025 09:18:05 -0.12, 61.36 0.06, 62.27 102.89 80
8 04/08/2025 21:37:16 0.11, 61.31 1.06, 56.98 493.25 80
9 04/09/2025 21:21:12 0.12, 61.32 0.10, 61.52 22.02 80
10 04/12/2025 09:21:49 -0.12, 61.40 -0.27, 60.73 76.66 80
11 04/13/2025 09:05:47 -0.12, 61.41 0.76, 65.25 438.05 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 3/30/2025
SNOs_Map_GOES-15_NPP_20250331.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 03/30/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP