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: 7/25/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/26/2025 19:37:03 0.10, -89.51 -0.73, -93.23 423.57 80
2 07/27/2025 19:20:59 0.09, -89.51 0.29, -88.70 93.16 80
3 07/30/2025 07:24:02 -0.10, -89.49 -0.10, -89.43 6.00 80
4 08/01/2025 19:24:35 0.11, -89.54 -0.04, -90.21 76.63 80
5 08/02/2025 19:08:30 0.11, -89.55 0.98, -85.68 440.44 80
6 08/04/2025 07:27:37 -0.12, -89.52 0.23, -90.95 163.70 80
7 08/05/2025 07:11:33 -0.12, -89.52 -0.79, -86.42 353.39 80
8 08/06/2025 19:30:50 0.13, -89.57 -0.35, -91.73 246.06 80
9 08/07/2025 19:14:46 0.13, -89.58 0.67, -87.20 271.20 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/25/2025
SNOs_Map_GOES-17_NOAA-21_20250726.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 07/25/2025 in txt file.

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