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: 11/24/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/25/2025 10:31:06 0.02,-137.00 -0.04,-136.77 26.29 80
2 11/27/2025 22:37:02 -0.00,-137.01 -0.15,-137.56 64.02 80
3 11/28/2025 22:15:40 0.00,-137.00 0.88,-133.04 451.34 80
4 11/30/2025 10:40:10 0.00,-136.99 0.28,-138.32 151.02 80
5 12/01/2025 10:18:47 0.00,-136.98 -0.69,-133.79 363.99 80
6 12/02/2025 22:43:26 -0.02,-136.97 -0.51,-139.10 242.67 80
7 12/03/2025 22:22:04 -0.02,-136.96 0.53,-134.58 271.70 80
8 12/05/2025 10:46:33 0.02,-136.93 0.70,-139.84 332.52 80
9 12/06/2025 10:25:10 0.01,-136.91 -0.34,-135.32 181.15 80
10 12/07/2025 22:49:50 -0.01,-136.89 -0.84,-140.64 427.15 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/24/2025
SNOs_Map_GOES-18_NOAA-21_20251125.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/24/2025 in txt file.

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