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: 10/12/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/13/2025 07:14:33 -0.23, -89.48 -0.64, -87.78 193.48 80
2 10/14/2025 19:39:06 0.21, -89.51 -0.61, -93.07 406.20 80
3 10/15/2025 19:17:41 0.23, -89.51 0.43, -88.53 110.99 80
4 10/17/2025 07:42:06 -0.20, -89.49 0.75, -93.79 489.92 80
5 10/18/2025 07:20:40 -0.22, -89.49 -0.24, -89.25 27.45 80
6 10/20/2025 19:26:29 0.20, -89.54 0.11, -90.01 53.57 80
7 10/21/2025 19:05:02 0.22, -89.55 1.10, -85.47 464.48 80
8 10/23/2025 07:29:27 -0.19, -89.54 0.06, -90.73 135.04 80
9 10/24/2025 07:08:01 -0.20, -89.55 -0.94, -86.19 382.45 80
10 10/25/2025 19:32:35 0.17, -89.58 -0.24, -91.49 216.36 80
11 10/26/2025 19:11:09 0.19, -89.60 0.77, -86.94 301.69 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/12/2025
SNOs_Map_GOES-17_NOAA-21_20251013.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/12/2025 in txt file.

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