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: 4/11/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/11/2025 22:46:31 0.00,-137.00 -0.81,-140.56 406.16 80
2 04/12/2025 22:30:25 0.00,-136.99 0.19,-136.02 110.70 80
3 04/14/2025 10:52:11 -0.00,-136.98 0.93,-141.29 490.28 80
4 04/15/2025 10:30:45 -0.00,-136.97 -0.07,-136.75 26.03 80
5 04/17/2025 22:33:51 0.00,-136.95 -0.12,-137.50 62.93 80
6 04/18/2025 22:17:45 0.01,-136.94 0.89,-132.96 452.56 80
7 04/20/2025 10:39:30 -0.01,-136.91 0.29,-138.22 150.31 80
8 04/21/2025 10:18:04 -0.01,-136.89 -0.73,-133.68 364.87 80
9 04/22/2025 22:39:57 0.01,-136.86 -0.44,-138.98 240.84 80
10 04/23/2025 22:23:50 0.01,-136.84 0.52,-134.43 274.29 80
11 04/25/2025 10:45:35 -0.01,-136.80 0.65,-139.69 329.26 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/11/2025
SNOs_Map_GOES-18_NOAA-21_20250412.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/11/2025 in txt file.

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