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: 11/8/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/09/2025 07:07:46 -0.14, -89.49 -0.88, -86.09 386.26 80
2 11/10/2025 19:32:26 0.09, -89.50 -0.32, -91.41 217.33 80
3 11/11/2025 19:11:04 0.12, -89.51 0.68, -86.89 297.99 80
4 11/13/2025 07:35:34 -0.08, -89.50 0.51, -92.16 302.98 80
5 11/14/2025 07:14:11 -0.11, -89.50 -0.50, -87.64 212.26 80
6 11/15/2025 19:38:52 0.06, -89.52 -0.69, -92.95 390.61 80
7 11/16/2025 19:17:29 0.08, -89.54 0.32, -88.43 125.59 80
8 11/18/2025 07:41:59 -0.03, -89.55 0.92, -93.69 473.31 80
9 11/19/2025 07:20:37 -0.06, -89.55 -0.15, -89.18 42.34 80
10 11/21/2025 19:26:34 0.03, -89.58 -0.06, -89.97 44.60 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/8/2025
SNOs_Map_GOES-17_NOAA-21_20251109.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 11/08/2025 in txt file.

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