Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/23/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/24/2025 07:08:01 -0.20, -89.49 -0.94, -86.18 376.66 80
2 10/25/2025 19:32:35 0.17, -89.51 -0.24, -91.48 224.14 80
3 10/26/2025 19:11:09 0.19, -89.51 0.76, -86.94 292.62 80
4 10/28/2025 07:35:33 -0.16, -89.49 0.44, -92.19 307.71 80
5 10/29/2025 07:14:06 -0.18, -89.48 -0.57, -87.65 208.71 80
6 10/30/2025 19:38:41 0.15, -89.50 -0.61, -92.94 392.15 80
7 10/31/2025 19:17:14 0.17, -89.50 0.41, -88.40 125.07 80
8 11/02/2025 07:41:38 -0.14, -89.50 0.78, -93.65 473.51 80
9 11/03/2025 07:20:12 -0.16, -89.50 -0.24, -89.12 43.42 80
10 11/05/2025 19:25:59 0.13, -89.51 0.03, -89.86 40.09 80
11 11/06/2025 19:04:33 0.15, -89.52 1.11, -85.33 477.31 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/23/2025
SNOs_Map_GOES-17_NOAA-21_20251024.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/23/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NOAA-21