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: 9/6/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 09/07/2025 19:30:45 0.22, -89.52 -0.25, -91.72 250.28 80
2 09/08/2025 19:14:40 0.22, -89.52 0.74, -87.18 266.64 80
3 09/10/2025 07:36:27 -0.22, -89.49 0.45, -92.45 337.40 80
4 09/11/2025 07:15:01 -0.22, -89.49 -0.55, -87.91 179.26 80
5 09/12/2025 19:36:57 0.22, -89.52 -0.61, -93.21 420.71 80
6 09/13/2025 19:20:52 0.23, -89.53 0.44, -88.69 96.10 80
7 09/16/2025 07:21:14 -0.23, -89.50 -0.26, -89.42 9.07 80
8 09/18/2025 19:24:24 0.24, -89.54 0.11, -90.19 73.21 80
9 09/19/2025 19:08:18 0.24, -89.55 1.12, -85.65 444.55 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/6/2025
SNOs_Map_GOES-17_NOAA-21_20250907.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 09/06/2025 in txt file.

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