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: 10/29/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/30/2025 19:38:40 0.15, -89.50 -0.65, -92.93 391.93 80
2 10/31/2025 19:17:14 0.17, -89.50 0.42, -88.40 125.31 80
3 11/02/2025 07:41:38 -0.13, -89.49 0.82, -93.64 473.48 80
4 11/03/2025 07:20:12 -0.16, -89.50 -0.25, -89.12 43.45 80
5 11/05/2025 19:25:59 0.13, -89.51 0.04, -89.86 39.83 80
6 11/06/2025 19:04:34 0.15, -89.52 1.11, -85.33 477.53 80
7 11/08/2025 07:28:57 -0.11, -89.51 0.12, -90.57 120.89 80
8 11/09/2025 07:07:30 -0.14, -89.51 -0.91, -86.04 395.90 80
9 11/10/2025 19:32:04 0.09, -89.52 -0.31, -91.32 204.78 80
10 11/11/2025 19:10:37 0.12, -89.53 0.71, -86.78 312.99 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/29/2025
SNOs_Map_GOES-17_NOAA-21_20251030.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/29/2025 in txt file.

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