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: 4/28/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/28/2025 22:27:34 0.01,-137.00 0.24,-135.99 115.91 80
2 04/30/2025 10:52:04 -0.01,-137.00 0.95,-141.27 486.04 80
3 05/01/2025 10:30:41 -0.01,-137.00 -0.05,-136.74 29.46 80
4 05/03/2025 22:33:56 0.00,-136.99 -0.10,-137.53 60.86 80
5 05/04/2025 22:17:52 0.00,-136.99 0.91,-133.00 454.61 80
6 05/06/2025 10:37:02 0.00,-136.98 0.26,-138.28 147.86 80
7 05/07/2025 10:20:59 0.00,-136.98 -0.75,-133.76 367.51 80
8 05/08/2025 22:40:16 -0.00,-136.97 -0.45,-139.07 238.51 80
9 05/09/2025 22:24:13 -0.00,-136.96 0.57,-134.54 276.59 80
10 05/11/2025 10:43:22 0.00,-136.95 0.65,-139.81 326.72 80
11 05/12/2025 10:27:19 0.00,-136.93 -0.37,-135.28 187.85 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/28/2025
SNOs_Map_GOES-18_NOAA-21_20250429.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/28/2025 in txt file.

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