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: 10/8/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/09/2025 19:32:58 0.22, -89.52 -0.27, -91.59 236.50 80
2 10/10/2025 19:11:33 0.23, -89.52 0.77, -87.06 280.17 80
3 10/12/2025 07:35:58 -0.21, -89.48 0.43, -92.31 322.46 80
4 10/13/2025 07:14:33 -0.23, -89.48 -0.61, -87.78 193.81 80
5 10/14/2025 19:39:07 0.21, -89.51 -0.58, -93.07 406.26 80
6 10/15/2025 19:17:42 0.23, -89.51 0.46, -88.54 111.00 80
7 10/17/2025 07:42:06 -0.20, -89.50 0.78, -93.79 489.36 80
8 10/18/2025 07:20:40 -0.22, -89.50 -0.27, -89.26 27.90 80
9 10/20/2025 19:26:28 0.20, -89.55 0.07, -90.01 53.36 80
10 10/21/2025 19:05:03 0.22, -89.56 1.12, -85.48 464.81 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/8/2025
SNOs_Map_GOES-17_NOAA-21_20251009.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/08/2025 in txt file.

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