Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-18 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/2/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/03/2025 10:45:37 -0.00,-137.04 0.61,-139.67 299.92 80
2 11/04/2025 10:24:11 0.00,-137.04 -0.41,-135.13 217.54 80
3 11/05/2025 22:46:05 -0.00,-137.05 -0.76,-140.43 385.13 80
4 11/06/2025 22:29:58 -0.00,-137.04 0.25,-135.89 131.82 80
5 11/08/2025 10:51:43 0.01,-137.03 0.92,-141.14 468.67 80
6 11/09/2025 10:30:16 0.02,-137.02 -0.11,-136.60 47.99 80
7 11/11/2025 22:33:23 0.01,-137.00 -0.09,-137.35 40.35 80
8 11/12/2025 22:17:17 0.01,-136.99 0.94,-132.81 475.99 80
9 11/14/2025 10:39:01 -0.01,-136.97 0.23,-138.07 124.89 80
10 11/15/2025 10:17:34 -0.01,-136.96 -0.80,-133.53 391.28 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/2/2025
SNOs_Map_GOES-18_NOAA-21_20251103.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/02/2025 in txt file.

Historical Predications of SNOs between GOES-18 and NOAA-21