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: 5/20/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 05/20/2025 22:15:29 -0.00,-137.01 0.88,-133.08 448.61 80
2 05/22/2025 10:39:59 -0.00,-137.01 0.31,-138.35 152.39 80
3 05/23/2025 10:18:35 -0.00,-137.02 -0.71,-133.82 363.99 80
4 05/24/2025 22:40:32 0.00,-137.03 -0.48,-139.13 240.29 80
5 05/25/2025 22:24:29 0.01,-137.02 0.55,-134.61 275.45 80
6 05/27/2025 10:46:18 -0.01,-137.01 0.64,-139.88 327.28 80
7 05/28/2025 10:27:35 -0.02,-137.01 -0.39,-135.36 187.90 80
8 05/29/2025 22:46:52 0.02,-137.00 -0.80,-140.67 417.98 80
9 05/30/2025 22:30:49 0.02,-136.99 0.24,-136.14 97.21 80
10 06/02/2025 10:33:53 -0.02,-136.97 -0.04,-136.89 9.20 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/20/2025
SNOs_Map_GOES-18_NOAA-21_20250521.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 05/20/2025 in txt file.

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