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: 11/23/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/24/2025 07:29:40 -0.00, -89.50 0.25, -90.71 137.56 80
2 11/25/2025 07:08:18 -0.04, -89.50 -0.77, -86.19 377.25 80
3 11/26/2025 19:32:57 -0.01, -89.51 -0.45, -91.50 226.64 80
4 11/27/2025 19:11:35 0.02, -89.51 0.58, -86.98 289.06 80
5 11/29/2025 07:36:04 0.04, -89.52 0.64, -92.24 309.68 80
6 11/30/2025 07:14:42 0.01, -89.53 -0.39, -87.72 205.66 80
7 12/01/2025 19:39:20 -0.06, -89.53 -0.87, -93.02 398.31 80
8 12/02/2025 19:17:59 -0.04, -89.54 0.22, -88.51 117.68 80
9 12/04/2025 07:42:27 0.09, -89.56 1.06, -93.77 480.23 80
10 12/05/2025 07:21:04 0.07, -89.56 0.02, -89.25 35.14 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/23/2025
SNOs_Map_GOES-17_NOAA-21_20251124.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 11/23/2025 in txt file.

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