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: 9/10/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 09/10/2025 19:24:40 0.22, -89.52 0.12, -90.07 62.43 1
2 09/11/2025 19:07:15 0.22, -89.52 1.12, -85.54 454.41 80
3 09/13/2025 07:29:01 -0.22, -89.48 0.08, -90.79 150.04 80
4 09/14/2025 07:07:37 -0.23, -89.48 -0.98, -86.27 366.38 80
5 09/15/2025 19:29:32 0.23, -89.51 -0.21, -91.56 233.25 80
6 09/16/2025 19:13:27 0.24, -89.52 0.79, -87.03 283.74 80
7 09/18/2025 07:35:13 -0.24, -89.49 0.41, -92.28 319.36 80
8 09/19/2025 07:13:49 -0.24, -89.49 -0.66, -87.76 197.89 80
9 09/20/2025 19:35:43 0.24, -89.54 -0.58, -93.04 400.53 80
10 09/21/2025 19:19:38 0.24, -89.55 0.49, -88.52 117.54 80
11 09/23/2025 07:41:25 -0.23, -89.53 0.71, -93.78 483.69 80
12 09/24/2025 07:19:59 -0.24, -89.54 -0.30, -89.24 34.14 80

Figure of GOES-17 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 9/10/2025
SNOs_Map_GOES-17_NOAA-20_20250911.jpg

Download SNOs between GOES-17 and NOAA-20 since TLE EPOCH: 09/10/2025 in txt file.

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