Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-15 and NOAA-20 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/14/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 09/15/2025 09:20:43 0.55, 61.33 0.39, 60.55 89.47 80
2 09/16/2025 09:04:38 0.57, 61.33 1.39, 65.08 427.50 80
3 09/17/2025 21:26:24 -0.55, 61.38 -0.19, 59.83 176.91 80
4 09/18/2025 21:05:00 -0.56, 61.38 -1.26, 64.35 339.30 80
5 09/20/2025 09:29:34 0.54, 61.33 0.02, 59.07 258.45 80
6 09/21/2025 09:10:50 0.55, 61.33 1.09, 63.59 258.72 80
7 09/22/2025 21:32:35 -0.52, 61.36 0.17, 58.35 344.17 80
8 09/23/2025 21:11:10 -0.54, 61.37 -0.89, 62.87 171.81 80
9 09/25/2025 09:35:45 0.51, 61.34 -0.33, 57.59 427.61 80
10 09/26/2025 09:16:59 0.53, 61.34 0.68, 62.12 88.88 80

Figure of GOES-15 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 9/14/2025
SNOs_Map_GOES-15_NOAA-20_20250915.jpg

Download SNOs between GOES-15 and NOAA-20 since TLE EPOCH: 09/14/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NOAA-20