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: 5/17/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 05/19/2025 22:34:13 0.01,-136.99 -0.13,-137.60 70.13 80
2 05/20/2025 22:18:09 0.01,-136.98 0.90,-133.08 445.12 80
3 05/22/2025 10:39:59 -0.01,-136.96 0.30,-138.35 158.30 80
4 05/23/2025 10:18:35 -0.01,-136.95 -0.73,-133.83 356.55 80
5 05/24/2025 22:40:33 0.01,-136.94 -0.46,-139.14 249.92 80
6 05/25/2025 22:24:28 0.02,-136.92 0.51,-134.60 264.37 80
7 05/27/2025 10:46:18 -0.03,-136.89 0.62,-139.89 340.74 80
8 05/28/2025 10:27:34 -0.03,-136.87 -0.36,-135.35 173.00 80
9 05/29/2025 22:46:51 0.03,-136.84 -0.82,-140.66 435.07 80
10 05/30/2025 22:30:48 0.03,-136.82 0.21,-136.14 78.64 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/17/2025
SNOs_Map_GOES-18_NOAA-21_20250518.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 05/17/2025 in txt file.

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