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: 5/17/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 05/18/2025 08:33:00 -0.01,-104.40 0.47,-106.58 248.43 80
2 05/19/2025 08:11:36 -0.01,-104.39 -0.56,-102.05 267.14 80
3 05/20/2025 20:33:34 0.01,-104.41 -0.63,-107.36 335.42 80
4 05/21/2025 20:17:29 0.01,-104.42 0.33,-102.82 180.74 80
5 05/23/2025 08:39:19 -0.00,-104.40 0.80,-108.11 422.65 80
6 05/24/2025 08:17:55 -0.01,-104.39 -0.17,-103.57 92.96 80
7 05/26/2025 20:23:49 0.00,-104.40 0.01,-104.36 5.12 80
8 05/29/2025 08:26:55 0.00,-104.38 0.14,-105.11 82.51 80
9 05/30/2025 08:05:30 0.01,-104.38 -0.84,-100.58 433.09 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/17/2025
SNOs_Map_GOES-17_NOAA-21_20250518.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 05/17/2025 in txt file.

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