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: 7/6/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/06/2025 22:34:45 -0.01,-137.00 -0.17,-137.73 83.68 80
2 07/07/2025 22:18:40 -0.01,-136.99 0.83,-133.20 431.76 80
3 07/09/2025 10:40:27 0.01,-136.97 0.37,-138.46 170.83 80
4 07/10/2025 10:19:04 0.01,-136.96 -0.69,-133.95 344.09 80
5 07/11/2025 22:41:01 -0.01,-136.94 -0.51,-139.25 263.00 80
6 07/12/2025 22:24:57 -0.01,-136.93 0.49,-134.72 251.61 80
7 07/14/2025 10:46:44 0.00,-136.90 0.71,-139.98 351.90 80
8 07/15/2025 10:25:20 -0.00,-136.88 -0.29,-135.45 162.42 80
9 07/16/2025 22:47:17 0.00,-136.86 -0.90,-140.76 445.56 80
10 07/17/2025 22:31:12 0.00,-136.83 0.11,-136.23 68.50 80
11 07/20/2025 10:34:16 0.00,-136.77 0.03,-136.97 22.99 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/6/2025
SNOs_Map_GOES-18_NOAA-21_20250707.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 07/06/2025 in txt file.

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