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: 7/5/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/05/2025 19:33:33 0.03, -92.60 0.23, -91.83 88.54 80
2 07/08/2025 07:33:51 -0.04, -91.24 0.26, -92.50 144.01 80
3 07/09/2025 07:17:45 -0.04, -90.71 -0.68, -87.95 314.57 80
4 07/10/2025 19:37:00 0.05, -89.91 -0.70, -93.22 376.77 80
5 07/11/2025 19:20:53 0.04, -89.38 0.19, -88.66 82.05 80
6 07/14/2025 07:21:12 -0.05, -88.03 0.25, -89.34 149.34 80
7 07/15/2025 07:05:06 -0.04, -87.50 -0.64, -84.78 309.87 80
8 07/16/2025 19:24:21 0.05, -86.72 -0.67, -90.06 380.58 80
9 07/17/2025 19:08:14 0.05, -86.19 0.22, -85.50 78.83 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/5/2025
SNOs_Map_GOES-17_NOAA-21_20250706.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 07/05/2025 in txt file.

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