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: 8/28/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/28/2025 22:41:03 0.01,-137.00 -0.52,-139.25 257.59 80
2 08/29/2025 22:24:58 0.01,-137.00 0.52,-134.73 258.47 80
3 08/31/2025 10:46:47 -0.02,-136.98 0.63,-140.00 343.86 80
4 09/01/2025 10:25:21 -0.02,-136.97 -0.35,-135.46 171.63 80
5 09/02/2025 22:47:16 0.02,-136.96 -0.84,-140.76 433.79 80
6 09/03/2025 22:31:12 0.03,-136.95 0.21,-136.24 81.41 80
7 09/06/2025 10:34:14 -0.03,-136.91 0.01,-136.96 7.61 80
8 09/08/2025 22:34:44 0.03,-136.87 -0.19,-137.73 98.54 80
9 09/09/2025 22:18:39 0.03,-136.85 0.86,-133.20 416.03 80
10 09/11/2025 10:40:26 -0.03,-136.81 0.34,-138.47 188.63 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/28/2025
SNOs_Map_GOES-18_NOAA-21_20250829.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 08/28/2025 in txt file.

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