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: 10/5/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/05/2025 22:30:48 0.01,-137.04 0.19,-136.12 103.94 80
2 10/07/2025 10:52:35 -0.01,-137.03 0.97,-141.38 496.70 80
3 10/08/2025 10:31:09 -0.01,-137.03 -0.07,-136.85 20.34 80
4 10/10/2025 22:34:17 0.02,-137.03 -0.14,-137.60 66.44 80
5 10/11/2025 22:18:12 0.02,-137.02 0.91,-133.07 449.67 80
6 10/13/2025 10:39:57 -0.03,-136.99 0.29,-138.33 152.91 80
7 10/14/2025 10:18:31 -0.03,-136.98 -0.76,-133.80 362.91 80
8 10/15/2025 22:40:26 0.04,-136.97 -0.42,-139.09 241.24 80
9 10/16/2025 22:24:19 0.04,-136.96 0.57,-134.55 274.74 80
10 10/18/2025 10:46:04 -0.04,-136.94 0.61,-139.81 327.51 80
11 10/19/2025 10:24:38 -0.04,-136.92 -0.39,-135.27 188.29 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/5/2025
SNOs_Map_GOES-18_NOAA-21_20251006.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 10/05/2025 in txt file.

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