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: 5/13/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 05/13/2025 22:46:37 0.02,-137.00 -0.77,-140.60 410.00 80
2 05/14/2025 22:30:33 0.02,-137.00 0.24,-136.08 106.00 80
3 05/16/2025 10:49:43 -0.01,-136.99 0.97,-141.35 496.26 80
4 05/17/2025 10:33:39 -0.01,-136.99 -0.05,-136.82 19.27 80
5 05/19/2025 22:34:13 -0.00,-136.98 -0.12,-137.61 71.19 80
6 05/20/2025 22:18:09 -0.01,-136.97 0.84,-133.07 444.03 80
7 05/22/2025 10:37:19 0.00,-136.95 0.30,-138.35 159.49 80
8 05/23/2025 10:21:14 0.00,-136.94 -0.67,-133.82 355.24 80
9 05/24/2025 22:40:33 0.01,-136.92 -0.46,-139.14 252.12 80
10 05/25/2025 22:24:28 0.01,-136.90 0.51,-134.60 262.03 80
11 05/27/2025 10:43:38 -0.02,-136.87 0.69,-139.87 343.12 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/13/2025
SNOs_Map_GOES-18_NOAA-21_20250514.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 05/13/2025 in txt file.

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