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: 8/2/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/02/2025 22:31:16 0.00,-137.00 0.19,-136.26 85.21 80
2 08/05/2025 10:34:19 0.00,-136.97 -0.02,-136.99 2.71 80
3 08/07/2025 22:34:50 -0.01,-136.95 -0.22,-137.75 92.58 80
4 08/08/2025 22:18:46 -0.01,-136.93 0.80,-133.22 422.41 80
5 08/10/2025 10:40:33 0.02,-136.90 0.40,-138.49 180.96 80
6 08/11/2025 10:19:08 0.01,-136.89 -0.62,-133.96 333.63 80
7 08/12/2025 22:41:05 -0.02,-136.86 -0.55,-139.26 273.49 80
8 08/13/2025 22:25:00 -0.02,-136.84 0.48,-134.73 240.75 80
9 08/15/2025 10:46:48 0.02,-136.81 0.73,-140.00 363.85 80
10 08/16/2025 10:25:23 0.02,-136.78 -0.29,-135.47 149.71 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/2/2025
SNOs_Map_GOES-18_NOAA-21_20250803.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 08/02/2025 in txt file.

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