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: 4/20/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/21/2025 10:20:44 0.00,-136.97 -0.75,-133.69 374.33 80
2 04/22/2025 22:39:58 -0.00,-136.97 -0.42,-138.98 229.26 80
3 04/23/2025 22:23:50 -0.00,-136.96 0.53,-134.43 287.01 80
4 04/25/2025 10:45:35 0.00,-136.93 0.64,-139.69 315.28 80
5 04/26/2025 10:24:09 0.00,-136.92 -0.38,-135.16 200.55 80
6 04/27/2025 22:46:02 -0.00,-136.90 -0.77,-140.45 404.13 80
7 04/28/2025 22:29:55 -0.00,-136.88 0.19,-135.90 111.19 80
8 04/30/2025 10:51:40 -0.00,-136.84 0.97,-141.16 492.71 80
9 05/01/2025 10:30:14 -0.00,-136.82 -0.05,-136.63 22.02 80
10 05/03/2025 22:33:18 -0.01,-136.77 -0.17,-137.37 68.93 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/20/2025
SNOs_Map_GOES-18_NOAA-21_20250421.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/20/2025 in txt file.

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