Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and FY3D Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/22/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon FY3D Lat,Lon Distance(km) Time Diff (sec)
1 09/23/2025 21:17:22 0.18, -89.52 0.06, -89.94 48.49 80
2 09/24/2025 20:55:53 0.19, -89.53 1.15, -85.38 473.76 80
3 09/26/2025 09:20:10 -0.17, -89.53 0.06, -90.55 116.76 80
4 09/27/2025 08:58:40 -0.18, -89.53 -0.98, -85.98 404.96 80
5 09/28/2025 21:23:07 0.16, -89.55 -0.21, -91.20 187.84 80
6 09/29/2025 21:01:37 0.17, -89.55 0.83, -86.62 334.39 80
7 10/01/2025 09:25:54 -0.15, -89.56 0.36, -91.80 255.16 80
8 10/02/2025 09:04:23 -0.17, -89.57 -0.68, -87.22 266.78 80
9 10/03/2025 21:28:51 0.14, -89.58 -0.49, -92.45 325.93 80
10 10/04/2025 21:07:20 0.16, -89.60 0.56, -87.87 196.82 80
11 10/06/2025 09:31:38 -0.13, -89.62 0.63, -93.05 391.08 80

Figure of GOES-17 and FY3D satellite orbits during SNOs since TLE Epoch: 9/22/2025
SNOs_Map_GOES-17_FY3D_20250923.jpg

Download SNOs between GOES-17 and FY3D since TLE EPOCH: 09/22/2025 in txt file.

Historical Predications of SNOs between GOES-17 and FY3D