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: 11/3/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/04/2025 10:24:10 -0.00,-137.05 -0.40,-135.13 218.01 80
2 11/05/2025 22:46:05 -0.00,-137.06 -0.77,-140.43 383.97 80
3 11/06/2025 22:29:58 -0.00,-137.06 0.25,-135.89 133.30 80
4 11/08/2025 10:51:43 0.01,-137.04 0.92,-141.14 466.94 80
5 11/09/2025 10:30:16 0.02,-137.03 -0.10,-136.60 49.96 80
6 11/11/2025 22:33:23 -0.00,-137.03 -0.09,-137.35 37.16 80
7 11/12/2025 22:17:17 0.00,-137.02 0.93,-132.81 479.49 80
8 11/14/2025 10:39:01 0.00,-137.00 0.23,-138.06 121.13 80
9 11/15/2025 10:17:34 0.00,-136.99 -0.80,-133.53 395.36 80
10 11/16/2025 22:39:28 -0.01,-136.98 -0.41,-138.81 208.28 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/3/2025
SNOs_Map_GOES-18_NOAA-21_20251104.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/03/2025 in txt file.

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