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: 10/6/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/07/2025 10:52:34 -0.01,-137.04 0.98,-141.38 495.69 80
2 10/08/2025 10:31:09 -0.01,-137.04 -0.06,-136.85 21.76 80
3 10/10/2025 22:34:18 0.01,-137.05 -0.09,-137.61 63.64 80
4 10/11/2025 22:18:11 0.02,-137.05 0.89,-133.07 452.98 80
5 10/13/2025 10:39:58 -0.02,-137.03 0.24,-138.34 148.87 80
6 10/14/2025 10:18:31 -0.03,-137.02 -0.74,-133.79 367.45 80
7 10/15/2025 22:40:25 0.03,-137.02 -0.44,-139.09 235.87 80
8 10/16/2025 22:24:20 0.03,-137.02 0.61,-134.56 280.62 80
9 10/18/2025 10:46:05 -0.03,-137.00 0.57,-139.82 320.91 80
10 10/19/2025 10:24:39 -0.03,-136.99 -0.43,-135.28 195.40 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/6/2025
SNOs_Map_GOES-18_NOAA-21_20251007.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 10/06/2025 in txt file.

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