Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-16 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/19/2025
Index Date Time (GOES-16) GOES-16 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 09/20/2025 20:27:44 0.10,-104.68 -0.20,-105.97 147.06 80
2 09/21/2025 20:11:38 0.10,-104.69 0.80,-101.43 370.39 80
3 09/23/2025 08:33:26 -0.10,-104.68 0.37,-106.70 230.07 80
4 09/24/2025 08:12:00 -0.10,-104.69 -0.64,-102.16 286.98 80
5 09/25/2025 20:33:56 0.10,-104.70 -0.52,-107.47 314.93 80
6 09/26/2025 20:17:50 0.10,-104.71 0.49,-102.93 202.31 80
7 09/28/2025 08:39:37 -0.10,-104.71 0.67,-108.20 397.85 80
8 09/29/2025 08:18:12 -0.10,-104.71 -0.34,-103.66 118.80 80
9 09/30/2025 20:40:06 0.10,-104.71 -0.88,-108.96 484.10 80
10 10/01/2025 20:24:02 0.11,-104.72 0.19,-104.43 33.05 80

Figure of GOES-16 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/19/2025
SNOs_Map_GOES-16_NOAA-21_20250920.jpg

Download SNOs between GOES-16 and NOAA-21 since TLE EPOCH: 09/19/2025 in txt file.

Historical Predications of SNOs between GOES-16 and NOAA-21