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: 9/21/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 09/22/2025 07:08:40 -0.24, -89.49 -0.92, -86.37 354.27 80
2 09/23/2025 19:30:36 0.24, -89.53 -0.24, -91.68 244.15 80
3 09/24/2025 19:14:30 0.24, -89.54 0.77, -87.14 273.31 80
4 09/26/2025 07:36:17 -0.23, -89.51 0.39, -92.41 329.44 80
5 09/27/2025 07:14:52 -0.24, -89.52 -0.62, -87.87 187.64 80
6 09/28/2025 19:39:26 0.23, -89.56 -0.59, -93.16 411.21 80
7 09/29/2025 19:18:02 0.24, -89.57 0.48, -88.64 106.31 80
8 10/01/2025 07:42:28 -0.23, -89.55 0.73, -93.90 495.56 80
9 10/02/2025 07:21:03 -0.24, -89.56 -0.28, -89.37 21.69 80
10 10/04/2025 19:24:12 0.24, -89.61 0.15, -90.14 59.11 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/21/2025
SNOs_Map_GOES-17_NOAA-21_20250922.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 09/21/2025 in txt file.

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