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: 9/9/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 09/10/2025 19:23:21 0.22, -89.53 0.13, -90.08 61.91 80
2 09/11/2025 19:07:15 0.22, -89.53 1.13, -85.54 455.30 80
3 09/13/2025 07:29:01 -0.22, -89.49 0.07, -90.80 148.49 80
4 09/14/2025 07:07:36 -0.23, -89.49 -0.93, -86.26 368.25 80
5 09/15/2025 19:29:32 0.23, -89.54 -0.20, -91.57 231.02 80
6 09/16/2025 19:13:27 0.24, -89.54 0.80, -87.03 286.31 80
7 09/18/2025 07:35:13 -0.24, -89.52 0.40, -92.29 316.14 80
8 09/19/2025 07:13:49 -0.24, -89.52 -0.66, -87.76 201.44 80
9 09/20/2025 19:35:43 0.24, -89.57 -0.57, -93.05 396.61 80
10 09/21/2025 19:19:39 0.24, -89.59 0.50, -88.52 121.79 80

Figure of GOES-17 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 9/9/2025
SNOs_Map_GOES-17_NOAA-20_20250910.jpg

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

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