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: 10/16/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 10/17/2025 19:31:46 0.21, -89.51 -0.19, -91.39 212.86 80
2 10/18/2025 19:10:24 0.23, -89.52 0.85, -86.87 303.02 80
3 10/20/2025 07:34:55 -0.20, -89.50 0.39, -92.14 300.27 80
4 10/21/2025 07:13:34 -0.21, -89.51 -0.66, -87.63 215.28 80
5 10/22/2025 19:38:13 0.18, -89.54 -0.57, -92.93 385.88 80
6 10/23/2025 19:16:52 0.20, -89.55 0.47, -88.42 130.22 80
7 10/25/2025 07:41:23 -0.16, -89.55 0.75, -93.69 471.97 80
8 10/26/2025 07:20:02 -0.19, -89.55 -0.30, -89.17 43.65 80
9 10/28/2025 19:25:58 0.17, -89.59 0.07, -89.95 42.02 80
10 10/29/2025 19:04:37 0.19, -89.60 1.12, -85.44 474.30 80

Figure of GOES-17 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 10/16/2025
SNOs_Map_GOES-17_NOAA-20_20251017.jpg

Download SNOs between GOES-17 and NOAA-20 since TLE EPOCH: 10/16/2025 in txt file.

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