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: 9/20/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon FY3D Lat,Lon Distance(km) Time Diff (sec)
1 09/21/2025 09:11:45 -0.19, -89.49 -0.23, -89.30 22.16 80
2 09/23/2025 21:17:23 0.18, -89.52 0.11, -89.95 48.44 80
3 09/24/2025 20:55:53 0.19, -89.53 1.13, -85.38 473.90 80
4 09/26/2025 09:20:10 -0.17, -89.53 0.07, -90.55 116.62 80
5 09/27/2025 08:58:41 -0.18, -89.53 -1.02, -85.99 405.13 80
6 09/28/2025 21:23:07 0.16, -89.55 -0.23, -91.19 187.56 80
7 09/29/2025 21:01:37 0.17, -89.56 0.86, -86.63 334.72 80
8 10/01/2025 09:25:55 -0.15, -89.57 0.34, -91.81 254.87 80
9 10/02/2025 09:04:24 -0.17, -89.57 -0.69, -87.23 267.08 80
10 10/03/2025 21:28:52 0.14, -89.59 -0.48, -92.45 325.56 80
11 10/04/2025 21:07:21 0.16, -89.61 0.56, -87.88 197.22 80

Figure of GOES-17 and FY3D satellite orbits during SNOs since TLE Epoch: 9/20/2025
SNOs_Map_GOES-17_FY3D_20250921.jpg

Download SNOs between GOES-17 and FY3D since TLE EPOCH: 09/20/2025 in txt file.

Historical Predications of SNOs between GOES-17 and FY3D