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: 7/1/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/01/2025 22:31:08 0.00,-137.01 0.18,-136.22 90.10 80
2 07/04/2025 10:34:12 -0.01,-137.01 -0.03,-136.96 5.44 80
3 07/06/2025 22:34:44 0.02,-137.00 -0.17,-137.73 84.45 80
4 07/07/2025 22:18:41 0.02,-136.99 0.88,-133.21 431.04 80
5 07/09/2025 10:37:48 -0.02,-136.97 0.32,-138.48 171.50 80
6 07/10/2025 10:21:44 -0.02,-136.96 -0.68,-133.95 343.43 80
7 07/11/2025 22:41:01 0.01,-136.94 -0.51,-139.25 263.48 80
8 07/12/2025 22:24:57 0.01,-136.93 0.49,-134.72 251.29 80
9 07/14/2025 10:44:04 -0.01,-136.90 0.71,-139.99 352.12 80
10 07/15/2025 10:28:00 -0.00,-136.88 -0.30,-135.45 162.43 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/1/2025
SNOs_Map_GOES-18_NOAA-21_20250702.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 07/01/2025 in txt file.

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