Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and NOAA-20 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/19/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 09/20/2025 19:35:44 0.24, -89.52 -0.53, -93.05 402.29 80
2 09/21/2025 19:19:38 0.24, -89.52 0.48, -88.52 115.28 80
3 09/23/2025 07:41:24 -0.23, -89.50 0.72, -93.77 487.27 80
4 09/24/2025 07:19:59 -0.24, -89.50 -0.29, -89.24 30.06 80
5 09/26/2025 19:23:09 0.24, -89.56 0.14, -90.00 50.52 80
6 09/27/2025 19:07:03 0.24, -89.56 1.15, -85.46 467.15 80
7 09/29/2025 07:28:50 -0.24, -89.54 0.05, -90.72 135.06 80
8 09/30/2025 07:07:25 -0.25, -89.54 -1.02, -86.20 382.28 80
9 10/01/2025 19:31:59 0.24, -89.59 -0.18, -91.49 215.85 80
10 10/02/2025 19:12:26 0.25, -89.60 0.84, -86.95 302.13 32

Figure of GOES-17 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 9/19/2025
SNOs_Map_GOES-17_NOAA-20_20250920.jpg

Download SNOs between GOES-17 and NOAA-20 since TLE EPOCH: 09/19/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NOAA-20