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: 10/7/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/08/2025 07:08:25 -0.24, -89.50 -0.96, -86.30 364.65 80
2 10/09/2025 19:32:59 0.22, -89.54 -0.23, -91.60 233.89 80
3 10/10/2025 19:11:34 0.23, -89.55 0.81, -87.07 283.67 80
4 10/12/2025 07:35:59 -0.21, -89.53 0.39, -92.32 317.58 80
5 10/13/2025 07:14:33 -0.23, -89.53 -0.65, -87.79 199.60 80
6 10/14/2025 19:39:07 0.21, -89.57 -0.60, -93.07 399.19 80
7 10/15/2025 19:17:41 0.23, -89.59 0.45, -88.54 118.95 80
8 10/17/2025 07:42:06 -0.20, -89.58 0.74, -93.80 479.98 80
9 10/18/2025 07:20:41 -0.22, -89.60 -0.31, -89.27 38.19 80
10 10/20/2025 19:26:29 0.20, -89.66 0.12, -90.02 40.81 80
11 10/21/2025 19:05:03 0.22, -89.68 1.17, -85.49 478.16 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/7/2025
SNOs_Map_GOES-17_NOAA-21_20251008.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/07/2025 in txt file.

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