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: 10/3/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/04/2025 19:24:11 0.24, -89.51 0.12, -90.12 68.65 80
2 10/05/2025 19:05:25 0.25, -89.52 1.16, -85.59 448.80 80
3 10/07/2025 07:29:50 -0.23, -89.50 0.06, -90.84 152.71 80
4 10/08/2025 07:08:25 -0.24, -89.50 -0.98, -86.31 364.36 80
5 10/09/2025 19:32:58 0.22, -89.53 -0.26, -91.59 235.16 80
6 10/10/2025 19:11:33 0.23, -89.54 0.79, -87.06 282.21 80
7 10/12/2025 07:35:58 -0.21, -89.52 0.40, -92.32 318.61 80
8 10/13/2025 07:14:32 -0.23, -89.52 -0.59, -87.77 198.43 80
9 10/14/2025 19:39:06 0.21, -89.55 -0.58, -93.07 401.18 80
10 10/15/2025 19:17:40 0.23, -89.56 0.48, -88.54 116.83 80
11 10/17/2025 07:42:05 -0.20, -89.56 0.75, -93.79 481.74 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/3/2025
SNOs_Map_GOES-17_NOAA-21_20251004.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/03/2025 in txt file.

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