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: 10/31/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/02/2025 07:41:38 -0.13, -89.50 0.81, -93.64 473.18 80
2 11/03/2025 07:20:12 -0.16, -89.50 -0.26, -89.12 43.90 80
3 11/05/2025 19:25:59 0.13, -89.52 0.05, -89.86 38.84 80
4 11/06/2025 19:04:33 0.15, -89.53 1.07, -85.32 478.64 80
5 11/08/2025 07:28:57 -0.11, -89.52 0.10, -90.58 119.79 80
6 11/09/2025 07:07:31 -0.14, -89.52 -0.92, -86.04 397.15 80
7 11/10/2025 19:32:04 0.09, -89.54 -0.29, -91.32 203.15 80
8 11/11/2025 19:10:37 0.12, -89.55 0.73, -86.79 314.78 80
9 11/13/2025 07:35:01 -0.08, -89.56 0.48, -92.03 281.50 80
10 11/14/2025 07:13:34 -0.11, -89.57 -0.55, -87.49 236.40 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/31/2025
SNOs_Map_GOES-17_NOAA-21_20251101.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/31/2025 in txt file.

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