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: 4/29/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/30/2025 10:49:24 0.00,-137.00 0.96,-141.26 485.69 80
2 05/01/2025 10:33:20 0.00,-137.00 -0.04,-136.74 29.91 80
3 05/03/2025 22:33:55 0.00,-136.99 -0.11,-137.53 60.49 80
4 05/04/2025 22:17:52 0.00,-136.99 0.90,-133.00 454.94 80
5 05/06/2025 10:39:42 -0.00,-136.99 0.28,-138.28 147.39 80
6 05/07/2025 10:18:19 -0.00,-136.98 -0.74,-133.76 367.99 80
7 05/08/2025 22:40:16 0.00,-136.97 -0.46,-139.06 237.97 80
8 05/09/2025 22:24:12 0.00,-136.97 0.56,-134.54 277.11 80
9 05/11/2025 10:46:03 -0.01,-136.95 0.61,-139.82 326.20 80
10 05/12/2025 10:27:18 -0.01,-136.94 -0.36,-135.28 188.35 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/29/2025
SNOs_Map_GOES-18_NOAA-21_20250501.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/29/2025 in txt file.

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