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: 11/26/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/27/2025 19:11:35 0.02, -89.50 0.56, -86.97 287.40 80
2 11/29/2025 07:36:04 0.04, -89.50 0.66, -92.24 312.09 80
3 11/30/2025 07:14:41 0.01, -89.50 -0.37, -87.72 202.87 80
4 12/01/2025 19:39:21 -0.06, -89.50 -0.83, -93.03 401.58 80
5 12/02/2025 19:17:58 -0.04, -89.50 0.21, -88.51 114.00 80
6 12/04/2025 07:42:26 0.09, -89.51 1.07, -93.76 484.60 80
7 12/05/2025 07:21:04 0.07, -89.51 0.03, -89.24 30.39 80
8 12/07/2025 19:27:00 -0.10, -89.51 -0.23, -90.02 59.28 80
9 12/08/2025 19:05:37 -0.06, -89.51 0.82, -85.50 456.60 80
10 12/10/2025 07:30:07 0.12, -89.54 0.41, -90.77 140.66 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/26/2025
SNOs_Map_GOES-17_NOAA-21_20251127.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 11/26/2025 in txt file.

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