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: 10/24/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/26/2025 22:36:33 0.01,-136.99 -0.10,-137.49 56.67 80
2 10/27/2025 22:15:07 0.01,-136.99 0.91,-132.95 460.01 80
3 10/29/2025 10:39:31 -0.01,-136.98 0.29,-138.20 140.38 80
4 10/30/2025 10:18:06 -0.01,-136.97 -0.78,-133.68 376.00 80
5 10/31/2025 22:42:39 0.01,-136.96 -0.45,-138.96 228.22 80
6 11/01/2025 22:21:13 0.01,-136.95 0.56,-134.42 288.00 80
7 11/03/2025 10:45:37 -0.00,-136.93 0.62,-139.67 312.94 80
8 11/04/2025 10:24:10 -0.00,-136.91 -0.39,-135.13 202.86 80
9 11/05/2025 22:48:44 -0.01,-136.89 -0.83,-140.42 402.61 80
10 11/06/2025 22:27:17 -0.01,-136.87 0.19,-135.88 112.56 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/24/2025
SNOs_Map_GOES-18_NOAA-21_20251025.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 10/24/2025 in txt file.

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