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: 6/12/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/13/2025 10:27:46 -0.01,-137.00 -0.35,-135.40 181.76 80
2 06/14/2025 22:47:03 0.00,-137.00 -0.85,-140.71 422.77 80
3 06/15/2025 22:31:00 -0.00,-137.00 0.19,-136.18 93.23 80
4 06/18/2025 10:34:04 0.01,-136.98 -0.00,-136.92 6.71 80
5 06/20/2025 22:34:37 -0.01,-136.96 -0.15,-137.71 84.03 80
6 06/21/2025 22:18:33 -0.01,-136.95 0.84,-133.17 430.78 80
7 06/23/2025 10:37:41 -0.00,-136.92 0.33,-138.45 173.37 80
8 06/24/2025 10:21:37 -0.00,-136.91 -0.66,-133.91 340.88 80
9 06/25/2025 22:40:54 0.01,-136.88 -0.54,-139.22 266.91 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/12/2025
SNOs_Map_GOES-18_NOAA-21_20250613.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 06/12/2025 in txt file.

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