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: 10/1/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/02/2025 10:46:26 -0.02,-137.00 0.62,-139.90 330.96 80
2 10/03/2025 10:25:00 -0.02,-137.00 -0.41,-135.37 185.85 80
3 10/04/2025 22:46:55 0.02,-137.00 -0.78,-140.67 417.50 80
4 10/05/2025 22:30:48 0.02,-137.00 0.19,-136.12 99.42 80
5 10/08/2025 10:31:08 0.03,-136.98 -0.01,-136.84 15.94 80
6 10/10/2025 22:34:16 -0.03,-136.95 -0.18,-137.59 73.37 80
7 10/11/2025 22:15:30 -0.02,-136.94 0.87,-133.06 442.03 80
8 10/13/2025 10:39:56 0.02,-136.91 0.32,-138.32 160.43 80
9 10/14/2025 10:18:29 0.02,-136.89 -0.68,-133.78 354.74 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/1/2025
SNOs_Map_GOES-18_NOAA-21_20251002.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 10/01/2025 in txt file.

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