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: 7/2/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/04/2025 10:31:32 -0.01,-137.01 -0.03,-136.96 5.46 80
2 07/06/2025 22:34:45 0.01,-137.00 -0.17,-137.73 84.24 80
3 07/07/2025 22:18:41 0.01,-136.99 0.89,-133.21 431.22 80
4 07/09/2025 10:40:28 -0.01,-136.97 0.31,-138.48 171.33 80
5 07/10/2025 10:21:44 -0.01,-136.96 -0.69,-133.95 343.57 80
6 07/11/2025 22:41:01 0.01,-136.94 -0.51,-139.25 263.42 80
7 07/12/2025 22:24:57 0.01,-136.93 0.49,-134.72 251.31 80
8 07/14/2025 10:44:04 -0.01,-136.90 0.71,-139.99 352.08 80
9 07/15/2025 10:28:00 -0.01,-136.88 -0.30,-135.45 162.44 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/2/2025
SNOs_Map_GOES-18_NOAA-21_20250703.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 07/02/2025 in txt file.

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