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: 10/4/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/04/2025 22:46:54 0.02,-137.00 -0.80,-140.66 416.81 80
2 10/05/2025 22:30:49 0.02,-137.00 0.23,-136.13 100.24 80
3 10/08/2025 10:31:08 0.03,-136.99 0.01,-136.84 16.98 80
4 10/10/2025 22:34:17 -0.02,-136.97 -0.15,-137.60 71.54 80
5 10/11/2025 22:18:10 -0.02,-136.96 0.84,-133.06 444.05 80
6 10/13/2025 10:39:55 0.02,-136.93 0.35,-138.31 158.52 80
7 10/14/2025 10:18:30 0.01,-136.91 -0.70,-133.78 356.82 80
8 10/15/2025 22:40:24 -0.02,-136.89 -0.48,-139.08 248.39 80
9 10/16/2025 22:21:38 -0.02,-136.88 0.52,-134.54 267.13 80
10 10/18/2025 10:46:02 0.02,-136.85 0.71,-139.78 335.13 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/4/2025
SNOs_Map_GOES-18_NOAA-21_20251005.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 10/04/2025 in txt file.

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