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: 10/13/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/14/2025 19:39:06 0.21, -89.51 -0.61, -93.06 406.20 80
2 10/15/2025 19:17:41 0.23, -89.51 0.43, -88.53 110.96 80
3 10/17/2025 07:42:06 -0.20, -89.49 0.75, -93.79 490.06 80
4 10/18/2025 07:20:41 -0.22, -89.49 -0.30, -89.26 27.28 80
5 10/20/2025 19:26:29 0.20, -89.54 0.11, -90.01 53.79 80
6 10/21/2025 19:05:03 0.22, -89.55 1.16, -85.48 464.21 80
7 10/23/2025 07:29:27 -0.19, -89.54 0.06, -90.73 135.43 80
8 10/24/2025 07:08:01 -0.20, -89.54 -0.94, -86.19 382.02 80
9 10/25/2025 19:32:35 0.17, -89.58 -0.24, -91.48 216.80 80
10 10/26/2025 19:11:09 0.19, -89.59 0.76, -86.94 301.21 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/13/2025
SNOs_Map_GOES-17_NOAA-21_20251014.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 10/13/2025 in txt file.

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