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: 8/6/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/07/2025 22:34:51 0.01,-137.00 -0.15,-137.77 86.81 80
2 08/08/2025 22:18:47 0.01,-137.00 0.88,-133.24 429.64 80
3 08/10/2025 10:40:34 -0.00,-137.00 0.33,-138.50 171.32 80
4 08/11/2025 10:19:10 -0.00,-136.99 -0.69,-133.97 344.81 80
5 08/12/2025 22:41:06 -0.00,-136.99 -0.49,-139.28 260.12 80
6 08/13/2025 22:25:01 0.00,-136.98 0.48,-134.73 255.64 80
7 08/15/2025 10:46:49 -0.00,-136.97 0.67,-140.01 346.76 80
8 08/16/2025 10:25:24 -0.00,-136.95 -0.35,-135.48 168.26 80
9 08/17/2025 22:47:20 0.00,-136.93 -0.87,-140.78 438.48 80
10 08/18/2025 22:31:15 0.00,-136.92 0.16,-136.25 76.16 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/6/2025
SNOs_Map_GOES-18_NOAA-21_20250807.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 08/06/2025 in txt file.

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