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: 10/4/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/04/2025 19:25:29 0.24, -89.51 0.12, -90.12 68.43 1
2 10/05/2025 19:05:25 0.25, -89.52 1.15, -85.59 449.07 80
3 10/07/2025 07:29:50 -0.23, -89.50 0.07, -90.84 152.53 80
4 10/08/2025 07:08:25 -0.24, -89.50 -0.97, -86.31 364.59 80
5 10/09/2025 19:32:59 0.22, -89.54 -0.22, -91.60 234.65 80
6 10/10/2025 19:11:33 0.23, -89.54 0.77, -87.06 282.79 80
7 10/12/2025 07:35:58 -0.21, -89.52 0.43, -92.31 318.15 80
8 10/13/2025 07:14:32 -0.23, -89.53 -0.62, -87.78 198.91 80
9 10/14/2025 19:39:07 0.21, -89.56 -0.56, -93.08 400.45 80
10 10/15/2025 19:17:40 0.23, -89.57 0.44, -88.54 117.60 80
11 10/17/2025 07:42:06 -0.20, -89.57 0.74, -93.79 481.06 80
12 10/18/2025 07:20:39 -0.22, -89.58 -0.26, -89.25 37.15 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/4/2025
SNOs_Map_GOES-17_NOAA-21_20251005.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/04/2025 in txt file.

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