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: 5/9/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 05/09/2025 22:24:12 -0.00,-137.00 0.53,-134.53 281.32 80
2 05/11/2025 10:46:02 0.00,-136.99 0.63,-139.81 321.21 80
3 05/12/2025 10:24:39 0.00,-136.99 -0.38,-135.29 194.08 80
4 05/13/2025 22:46:36 -0.00,-136.98 -0.82,-140.59 411.98 80
5 05/14/2025 22:30:33 0.00,-136.97 0.20,-136.07 102.71 80
6 05/17/2025 10:30:59 -0.01,-136.93 -0.01,-136.81 13.13 80
7 05/19/2025 22:34:12 0.02,-136.89 -0.16,-137.60 80.82 80
8 05/20/2025 22:18:09 0.02,-136.87 0.86,-133.07 433.16 80
9 05/22/2025 10:37:18 -0.02,-136.84 0.34,-138.35 171.94 80
10 05/23/2025 10:21:15 -0.02,-136.82 -0.69,-133.82 341.65 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/9/2025
SNOs_Map_GOES-18_NOAA-21_20250510.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 05/09/2025 in txt file.

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