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: 5/14/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 05/14/2025 22:30:32 -0.00,-137.00 0.18,-136.06 106.63 80
2 05/16/2025 10:52:23 -0.00,-137.00 0.98,-141.35 495.96 80
3 05/17/2025 10:30:59 -0.01,-136.99 -0.04,-136.82 19.34 80
4 05/19/2025 22:34:13 0.01,-136.98 -0.13,-137.60 71.13 80
5 05/20/2025 22:18:10 0.01,-136.97 0.90,-133.08 443.95 80
6 05/22/2025 10:39:59 -0.02,-136.95 0.31,-138.35 159.50 80
7 05/23/2025 10:18:35 -0.02,-136.94 -0.72,-133.83 355.18 80
8 05/24/2025 22:40:33 0.02,-136.93 -0.47,-139.14 251.78 80
9 05/25/2025 22:24:29 0.02,-136.91 0.56,-134.61 262.34 80
10 05/27/2025 10:43:39 -0.03,-136.88 0.63,-139.89 342.76 80
11 05/28/2025 10:27:35 -0.03,-136.85 -0.40,-135.36 170.84 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/14/2025
SNOs_Map_GOES-18_NOAA-21_20250515.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 05/14/2025 in txt file.

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