Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/10/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/10/2025 19:37:00 0.05, -89.92 -0.70, -93.22 376.02 80
2 07/11/2025 19:20:53 0.05, -89.39 0.18, -88.66 82.82 80
3 07/14/2025 07:21:12 -0.05, -88.03 0.25, -89.34 148.81 80
4 07/15/2025 07:05:06 -0.05, -87.51 -0.64, -84.78 310.39 80
5 07/16/2025 19:24:21 0.06, -86.72 -0.67, -90.06 379.87 80
6 07/17/2025 19:08:14 0.06, -86.20 0.21, -85.50 79.50 80
7 07/20/2025 07:08:33 -0.07, -84.85 0.22, -86.18 151.34 80
8 07/21/2025 06:52:27 -0.07, -84.33 -0.67, -81.62 307.88 80
9 07/22/2025 19:11:41 0.08, -83.54 -0.69, -86.89 382.39 80
10 07/23/2025 18:55:35 0.08, -83.02 0.20, -82.34 77.28 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/10/2025
SNOs_Map_GOES-17_NOAA-21_20250711.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 07/10/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NOAA-21