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: 4/18/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/18/2025 22:17:45 -0.00,-137.00 0.87,-132.96 459.42 80
2 04/20/2025 10:39:30 0.00,-136.98 0.30,-138.22 142.27 80
3 04/21/2025 10:18:04 0.00,-136.97 -0.71,-133.68 374.01 80
4 04/22/2025 22:39:57 0.00,-136.96 -0.46,-138.97 229.82 80
5 04/23/2025 22:23:51 0.00,-136.95 0.56,-134.44 286.30 80
6 04/25/2025 10:45:36 -0.00,-136.92 0.62,-139.70 316.06 80
7 04/26/2025 10:24:09 0.00,-136.91 -0.41,-135.16 199.65 80
8 04/27/2025 22:46:02 0.00,-136.89 -0.81,-140.44 405.30 80
9 04/28/2025 22:29:55 0.00,-136.87 0.22,-135.91 109.84 80
10 04/30/2025 10:51:40 -0.01,-136.83 0.94,-141.17 494.20 80
11 05/01/2025 10:30:13 -0.01,-136.81 -0.03,-136.62 20.49 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/18/2025
SNOs_Map_GOES-18_NOAA-21_20250419.jpg

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

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