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: 9/30/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/02/2025 07:21:02 -0.24, -89.48 -0.28, -89.36 14.64 80
2 10/04/2025 19:26:51 0.24, -89.52 0.12, -90.12 68.34 80
3 10/05/2025 19:05:25 0.25, -89.52 1.15, -85.59 449.06 80
4 10/07/2025 07:29:50 -0.23, -89.51 0.07, -90.84 152.10 80
5 10/08/2025 07:08:25 -0.24, -89.51 -0.97, -86.31 364.97 80
6 10/09/2025 19:32:59 0.22, -89.54 -0.22, -91.60 234.91 80
7 10/10/2025 19:11:33 0.23, -89.54 0.77, -87.06 282.45 80
8 10/12/2025 07:35:58 -0.21, -89.53 0.43, -92.31 318.10 80
9 10/13/2025 07:14:33 -0.23, -89.53 -0.62, -87.78 198.92 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/30/2025
SNOs_Map_GOES-17_NOAA-21_20251001.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 09/30/2025 in txt file.

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