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: 4/9/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/10/2025 10:27:18 -0.00,-137.00 -0.39,-135.27 197.08 80
2 04/11/2025 22:46:32 0.00,-137.00 -0.78,-140.57 406.36 80
3 04/12/2025 22:30:25 0.00,-136.99 0.22,-136.02 110.46 80
4 04/14/2025 10:52:11 -0.00,-136.98 0.97,-141.28 490.11 80
5 04/15/2025 10:30:44 -0.00,-136.98 -0.04,-136.74 26.20 80
6 04/17/2025 22:33:52 0.01,-136.95 -0.10,-137.51 63.09 80
7 04/18/2025 22:17:46 0.01,-136.94 0.91,-132.97 452.45 80
8 04/20/2025 10:39:31 -0.01,-136.91 0.27,-138.23 150.06 80
9 04/21/2025 10:18:04 -0.01,-136.89 -0.74,-133.69 365.17 80
10 04/22/2025 22:39:57 0.01,-136.86 -0.49,-138.97 240.84 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/9/2025
SNOs_Map_GOES-18_NOAA-21_20250410.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/09/2025 in txt file.

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