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: 9/3/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 09/03/2025 22:31:12 0.02,-136.95 0.19,-136.23 81.97 80
2 09/06/2025 10:34:14 -0.02,-136.91 0.01,-136.96 6.89 80
3 09/08/2025 22:34:43 0.02,-136.87 -0.18,-137.72 97.27 80
4 09/09/2025 22:18:38 0.02,-136.86 0.81,-133.19 417.42 80
5 09/11/2025 10:40:26 -0.03,-136.82 0.31,-138.47 187.16 80
6 09/12/2025 10:19:01 -0.03,-136.79 -0.69,-133.93 326.82 80
7 09/13/2025 22:40:55 0.03,-136.75 -0.52,-139.22 281.05 80
8 09/14/2025 22:24:50 0.03,-136.73 0.49,-134.69 232.45 80
9 09/16/2025 10:46:37 -0.03,-136.68 0.69,-139.95 373.36 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/3/2025
SNOs_Map_GOES-18_NOAA-21_20250904.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 09/03/2025 in txt file.

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