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: 11/21/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/21/2025 19:25:15 0.03, -89.50 0.00, -89.98 53.08 0
2 11/22/2025 19:05:11 0.06, -89.50 0.97, -85.44 462.82 80
3 11/24/2025 07:29:40 -0.00, -89.50 0.26, -90.71 137.67 80
4 11/25/2025 07:08:18 -0.04, -89.50 -0.76, -86.19 377.09 80
5 11/26/2025 19:32:57 -0.01, -89.50 -0.46, -91.50 226.91 80
6 11/27/2025 19:11:35 0.02, -89.51 0.57, -86.97 288.73 80
7 11/29/2025 07:36:04 0.04, -89.52 0.65, -92.24 310.09 80
8 11/30/2025 07:14:42 0.01, -89.52 -0.38, -87.72 205.21 80
9 12/01/2025 19:39:21 -0.06, -89.53 -0.83, -93.03 398.87 80
10 12/02/2025 19:17:58 -0.04, -89.53 0.21, -88.51 117.02 80
11 12/04/2025 07:42:28 0.09, -89.55 1.02, -93.78 480.94 80
12 12/05/2025 07:21:05 0.07, -89.55 -0.01, -89.26 34.26 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/21/2025
SNOs_Map_GOES-17_NOAA-21_20251122.jpg

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

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