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: 4/14/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/15/2025 10:30:44 0.00,-137.00 -0.05,-136.75 28.76 80
2 04/17/2025 22:33:52 -0.00,-137.00 -0.08,-137.51 57.80 80
3 04/18/2025 22:17:46 0.00,-136.99 0.93,-132.97 458.80 80
4 04/20/2025 10:39:30 0.00,-136.97 0.31,-138.22 142.53 80
5 04/21/2025 10:18:04 0.00,-136.96 -0.70,-133.68 373.70 80
6 04/22/2025 22:39:57 -0.01,-136.95 -0.47,-138.97 230.63 80
7 04/23/2025 22:23:50 -0.00,-136.94 0.55,-134.44 285.34 80
8 04/25/2025 10:45:36 0.00,-136.92 0.62,-139.70 316.75 80
9 04/26/2025 10:24:09 0.00,-136.90 -0.40,-135.16 198.75 80
10 04/27/2025 22:46:01 0.01,-136.88 -0.81,-140.44 406.90 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/14/2025
SNOs_Map_GOES-18_NOAA-21_20250415.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/14/2025 in txt file.

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