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: 4/26/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/27/2025 22:46:17 -0.00,-137.00 -0.77,-140.51 399.73 80
2 04/28/2025 22:30:14 -0.00,-137.00 0.23,-135.99 115.69 80
3 04/30/2025 10:49:24 -0.00,-136.99 0.95,-141.27 487.37 80
4 05/01/2025 10:33:21 -0.00,-136.98 -0.05,-136.74 27.50 80
5 05/03/2025 22:33:55 0.01,-136.96 -0.09,-137.53 64.26 80
6 05/04/2025 22:17:52 0.02,-136.95 0.92,-133.00 450.58 80
7 05/06/2025 10:37:02 -0.02,-136.94 0.25,-138.29 153.00 80
8 05/07/2025 10:20:59 -0.02,-136.93 -0.76,-133.76 361.83 80
9 05/08/2025 22:40:16 0.02,-136.91 -0.43,-139.07 244.77 80
10 05/09/2025 22:24:12 0.02,-136.90 0.53,-134.53 269.76 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/26/2025
SNOs_Map_GOES-18_NOAA-21_20250427.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/26/2025 in txt file.

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