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: 11/4/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/05/2025 19:25:59 0.13, -89.51 0.06, -89.86 39.71 80
2 11/06/2025 19:04:33 0.15, -89.51 1.08, -85.32 477.12 80
3 11/08/2025 07:28:56 -0.11, -89.49 0.15, -90.57 122.60 80
4 11/09/2025 07:07:31 -0.14, -89.49 -0.93, -86.04 393.66 80
5 11/10/2025 19:32:04 0.09, -89.50 -0.29, -91.32 207.38 80
6 11/11/2025 19:10:38 0.12, -89.50 0.73, -86.78 309.89 80
7 11/13/2025 07:35:01 -0.08, -89.50 0.49, -92.03 287.66 80
8 11/14/2025 07:13:34 -0.11, -89.51 -0.53, -87.49 229.54 80
9 11/15/2025 19:38:08 0.06, -89.52 -0.68, -92.77 370.72 80
10 11/16/2025 19:16:41 0.09, -89.53 0.35, -88.24 147.44 80
11 11/18/2025 07:41:05 -0.03, -89.55 0.87, -93.48 448.21 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/4/2025
SNOs_Map_GOES-17_NOAA-21_20251105.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 11/04/2025 in txt file.

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