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: 7/31/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/01/2025 22:47:20 -0.02,-137.00 -0.85,-140.78 430.17 80
2 08/02/2025 22:31:16 -0.02,-137.00 0.17,-136.25 85.71 80
3 08/05/2025 10:34:19 0.03,-136.97 0.02,-136.98 2.21 80
4 08/07/2025 22:34:51 -0.04,-136.94 -0.19,-137.76 92.47 80
5 08/08/2025 22:18:45 -0.04,-136.93 0.77,-133.22 422.39 80
6 08/10/2025 10:40:33 0.04,-136.90 0.38,-138.49 181.22 80
7 08/11/2025 10:19:09 0.04,-136.88 -0.64,-133.96 333.27 80
8 08/12/2025 22:41:04 -0.04,-136.85 -0.59,-139.25 274.01 80
9 08/13/2025 22:25:00 -0.04,-136.83 0.43,-134.73 240.17 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/31/2025
SNOs_Map_GOES-18_NOAA-21_20250801.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 07/31/2025 in txt file.

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