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: 4/21/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/22/2025 22:39:57 -0.00,-136.99 -0.44,-138.98 226.34 80
2 04/23/2025 22:23:51 -0.00,-137.00 0.58,-134.44 291.27 80
3 04/25/2025 10:45:36 0.00,-136.99 0.59,-139.70 308.33 80
4 04/26/2025 10:24:10 -0.00,-136.99 -0.43,-135.17 208.86 80
5 04/27/2025 22:46:02 0.00,-136.99 -0.78,-140.45 394.24 80
6 04/28/2025 22:29:56 0.00,-136.99 0.25,-135.91 122.41 80
7 04/30/2025 10:51:41 -0.00,-136.97 0.92,-141.18 478.79 80
8 05/01/2025 10:30:13 -0.00,-136.96 -0.05,-136.63 37.45 80
9 05/03/2025 22:33:19 -0.02,-136.93 -0.11,-137.38 50.38 80
10 05/04/2025 22:17:12 -0.03,-136.92 0.87,-132.83 465.81 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/21/2025
SNOs_Map_GOES-18_NOAA-21_20250422.jpg

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

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