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: 10/10/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/12/2025 07:35:59 -0.21, -89.48 0.40, -92.32 322.63 80
2 10/13/2025 07:14:32 -0.23, -89.48 -0.58, -87.77 193.64 80
3 10/14/2025 19:39:07 0.21, -89.51 -0.61, -93.07 406.18 80
4 10/15/2025 19:17:41 0.23, -89.51 0.44, -88.54 111.05 80
5 10/17/2025 07:42:06 -0.20, -89.49 0.75, -93.79 489.57 80
6 10/18/2025 07:20:41 -0.22, -89.50 -0.30, -89.26 27.86 80
7 10/20/2025 19:26:29 0.20, -89.55 0.11, -90.01 53.26 80
8 10/21/2025 19:05:03 0.22, -89.56 1.16, -85.49 464.82 80
9 10/23/2025 07:29:28 -0.19, -89.55 0.07, -90.73 134.42 80
10 10/24/2025 07:08:01 -0.20, -89.56 -0.93, -86.19 383.12 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/10/2025
SNOs_Map_GOES-17_NOAA-21_20251011.jpg

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

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