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: 10/19/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-20 Lat,Lon Distance(km) Time Diff (sec)
1 10/20/2025 07:34:55 -0.20, -89.50 0.38, -92.14 300.91 80
2 10/21/2025 07:13:34 -0.21, -89.50 -0.66, -87.62 214.45 80
3 10/22/2025 19:38:13 0.18, -89.53 -0.57, -92.93 387.01 80
4 10/23/2025 19:16:52 0.20, -89.54 0.48, -88.42 128.90 80
5 10/25/2025 07:41:23 -0.16, -89.53 0.74, -93.69 473.65 80
6 10/26/2025 07:20:01 -0.18, -89.53 -0.25, -89.16 41.72 80
7 10/28/2025 19:25:59 0.17, -89.57 0.09, -89.96 44.27 80
8 10/29/2025 19:04:37 0.19, -89.58 1.15, -85.44 471.81 80
9 10/31/2025 07:29:07 -0.16, -89.57 0.11, -90.71 129.57 80
10 11/01/2025 07:07:46 -0.18, -89.58 -0.95, -86.19 386.31 80
11 11/02/2025 19:32:25 0.15, -89.61 -0.26, -91.50 214.91 80

Figure of GOES-17 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 10/19/2025
SNOs_Map_GOES-17_NOAA-20_20251020.jpg

Download SNOs between GOES-17 and NOAA-20 since TLE EPOCH: 10/19/2025 in txt file.

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