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: 6/5/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/05/2025 22:15:43 0.01,-137.00 0.88,-133.14 440.87 80
2 06/07/2025 10:40:12 -0.01,-137.00 0.33,-138.40 160.99 80
3 06/08/2025 10:18:48 -0.02,-136.99 -0.72,-133.88 354.47 80
4 06/09/2025 22:40:45 0.02,-136.98 -0.48,-139.19 251.63 80
5 06/10/2025 22:24:42 0.02,-136.97 0.56,-134.67 263.33 80
6 06/12/2025 10:43:50 -0.02,-136.95 0.64,-139.94 339.94 80
7 06/13/2025 10:27:46 -0.02,-136.94 -0.35,-135.40 174.72 80
8 06/14/2025 22:47:03 0.01,-136.91 -0.85,-140.71 432.60 80
9 06/15/2025 22:30:59 -0.00,-136.90 0.13,-136.17 81.91 80
10 06/18/2025 10:34:03 0.01,-136.85 0.00,-136.92 8.40 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/5/2025
SNOs_Map_GOES-18_NOAA-21_20250606.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 06/05/2025 in txt file.

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