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: 10/11/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/12/2025 07:35:58 -0.21, -89.48 0.44, -92.31 322.71 80
2 10/13/2025 07:14:33 -0.23, -89.48 -0.60, -87.78 193.52 80
3 10/14/2025 19:39:07 0.21, -89.51 -0.59, -93.07 406.16 80
4 10/15/2025 19:17:41 0.23, -89.51 0.46, -88.54 111.05 80
5 10/17/2025 07:42:06 -0.20, -89.49 0.79, -93.78 489.74 80
6 10/18/2025 07:20:40 -0.22, -89.50 -0.26, -89.25 27.49 80
7 10/20/2025 19:26:28 0.20, -89.54 0.07, -90.01 53.44 80
8 10/21/2025 19:05:03 0.22, -89.56 1.12, -85.48 464.70 80
9 10/23/2025 07:29:27 -0.19, -89.55 0.10, -90.72 134.71 80
10 10/24/2025 07:08:01 -0.20, -89.55 -0.96, -86.19 382.82 80
11 10/25/2025 19:32:36 0.17, -89.59 -0.22, -91.49 216.04 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/11/2025
SNOs_Map_GOES-17_NOAA-21_20251012.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/11/2025 in txt file.

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