Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-18 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/26/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/27/2025 22:34:22 -0.00,-137.01 -0.14,-137.56 63.85 80
2 11/28/2025 22:18:20 -0.01,-137.00 0.89,-133.04 451.69 80
3 11/30/2025 10:40:10 0.01,-136.99 0.28,-138.32 150.75 80
4 12/01/2025 10:18:47 0.01,-136.99 -0.70,-133.79 364.30 80
5 12/02/2025 22:40:46 -0.01,-136.97 -0.50,-139.10 242.39 80
6 12/03/2025 22:24:44 -0.02,-136.96 0.54,-134.58 272.15 80
7 12/05/2025 10:46:33 0.03,-136.93 0.68,-139.85 331.91 80
8 12/06/2025 10:25:10 0.03,-136.92 -0.36,-135.33 182.01 80
9 12/07/2025 22:47:09 -0.03,-136.89 -0.88,-140.63 426.12 80
10 12/08/2025 22:31:06 -0.03,-136.87 0.17,-136.11 87.76 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/26/2025
SNOs_Map_GOES-18_NOAA-21_20251127.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/26/2025 in txt file.

Historical Predications of SNOs between GOES-18 and NOAA-21